Board Control Warlock
About the Deck
Cards That Didn't Make the Cut
Resources and Shoutouts
This is a board control Warlock deck, designed to benefit as much as possible from Life Tap and buffing creatures. It uses an extremely low mana curve to fit in Life Tap frequently, have a consistent strong early game, and gain board control. It uses Shattered Sun Cleric and Dark Iron Dwarf to make the early creatures far more useful. It has the tools to keep the initiative all the way to Jaraxxus if necessary, but frequently wins earlier. I believe it is one of the best, most consistent decks that exist today.
- 1st Place Myth Gaming $50 tournament, Oct. 28 played by curi
- 2nd Place 256 player Managrind NA tournament, Nov. 2 played by curi
- 1st Place Reddit Bragging Rights #4 played by monk
- 1st Place Reddit Bragging Rights #5, Nov 4 played by monk
- 2nd Place Reddit Bragging Rights #5, Nov 5 played by curi
- 1st Place Reddit Bragging Rights #6, Nov 9 played by curi
- 2nd place Myth Gaming tournament, Nov 15 played by curi
About the Deck
This is a board control deck. It plays a strong, consistent early game with the goal of getting board control. Board control means you kill your opponent's creatures every turn while having some of your own left over.
Keeping board control means that as long as your opponent doesn't have charge, you get to control which creatures fight with which creatures. That's a big advantage. You want your 1/2 to fight his 1/1, your 2/1 to fight his 3/2, and your 5/2 or 5/3 to fight is 4/5 or 6/5. If your creatures are out first, you get to match up the fighting in your favor.
If you keep killing your opponent's creatures, you can get an advantage by "trading up." That means you trade a smaller or cheaper creature for his new creature. Frequently you can trade an old creature that already attacked several times for a new creature that your opponent just spent all his mana on. How? The best options are Shattered Sun Cleric, Dark Iron Dwarf, and Defender of Argus, which enable your older creature to deal more damage. You can also get extra damage from Demonfire, Knife Juggler, Soulfire, Power Overwhelming, or Mortal Coil. Also, if you have multiple weak creatures, you can trade them into a new creature and still get a good deal thanks to your card drawing effects like Novice Engineer and Life Tap.
Shattered Sun Cleric and Dark Iron Dwarf (which we'll call the buff creatures) are very powerful cards and this deck aims to take full advantage of them. In general, if both decks play a bunch of creatures, but I have buff creatures and my opponent doesn't, I will win because the buff creatures let me make really favorable trades in creature combat. If we both have buff creatures, then whoever gets board control has a big advantage because he will have creatures to buff while his opponent won't have anything to use his buffs on. The result is that most good creature decks use buff creatures, because they are so strong, and if everyone uses them then whoever gets board control has a big advantage.
So if both sides want board control so their buffers are more effective, and so they can control combat, what do you do to get it? You start playing creatures first! You need cheap creatures and cheap kill spells. And that's where the Warlock hero comes in. Warlock has six good 1 mana creatures (Blood Imp, Flame imp, Voidwalker). By using the Warlock 1 mana creatures in addition to the netural Argent Squire, we can achieve a deck with eight 1 mana creatures. That is more than any other standard deck is currently able to use effectively because Warlock has the best class-specific set of 1 mana creatures. We also get Soulfire, Mortal Coil, and Demonfire for cheap early removal.
There is a second reason for playing Warlock and it's Life Tap. If you play a lot of 1 mana creatures, what do you do later in the game? Other heroes risk running out of steam later in the game if they have too many early game cards. But with Warlock, playing lower mana cards means you have more mana left to draw cards with Life Tap, so it's much harder to run out of momentum.
The deck works by getting board control with the best and most consistent early game, with nineteen cards for 2 mana or less. Then, because you have board control, you will frequently "trade up" and get greater value from your small cards. Furthermore, you won't be attacked much as long as you keep the initiative, so the 2 damage from each Life Tap won't be a big problem.
It's rare to get bad hands with this deck. Nineteen cards from 0-2 mana mean you are virtually always going to draw good early game cards right from the start.
For the higher mana cards, they are eleven of the highest quality cards for 3+ mana. There’s no fear of losing steam in longer games because you can draw cards with Life Tap and the presence of Jaraxxus. You start off strong but you can win later too. This deck is strong all around!
This is not an all-in suicide rush deck. Be careful about area of effect spells and use Life Tap instead of overextending. Know what board clear spells your opponent may play on which turn and buff some of your creatures' health to live through them. As a bonus, Argent Squire can live with her Divine Shield. Also, don't be shy about trading your creatures for enemy creatures to lower the effect of board clear spells. Remember! Don't put out more creatures than necessary.
One of the goals of the deck, if you don't win early, is to keep the initiative until turn 9. If you still have the initiative at turn 9 and play Jaraxxus, you should win. Jarraxus is extremely good if you end the turn you play still him at 15 hp with some creatures out, and your opponent has no creatures out. If you do not have the initiative, then you will usually die even when trying to play Jaraxxus. But fortunately this deck is great at getting the initiative early and then keeping it.
Quick Tip: Don't be too scared to attack with Blood Imps. Don't just get it killed to the Mage hero power for no reason. If you can buff it and it will cost them a removal spell or creature to kill it, then go ahead and attack. Using Blood Imp aggressively reduces your vulnerability to many area of effect spells. Any time you're trading 1 mana cards for any card your opponent has, you gain the advantage. You can afford to trade off a bunch of cheap cards and draw new ones while your opponent risks running out of cards.
This deck is very good at using all its mana for the entire game. Early on, you can use all your mana because you have a lot of cheap spells. Later on, you can spend 2 mana per turn on Life Tap and then draw two cards, letting you play an average of two cards per turn. Between Life Tap and two cards per turn, you can usually spend all your mana even though the deck has a low mana curve.
This deck features several combos that you should know about if you play the deck or play against it. Combos can be very powerful in the right situation and swing the game in the Warlock's favor.
+ / /Combo #1: Demonfire + Demons: Demonfire is usually thought of as a removal spell, but it also works well on Voidwalker and sometimes on Blood Imp or Flame Imp. If you play Voidwalker on your first turn and your opponent plays a Faerie Dragon, you can Demonfire your Voidwalker and kill the Faerie Dragon. You will end up with a 3/2 Taunt out and each side will have lost one card. It works even better if they play Northshire Cleric against your Voidwalker or Blood Imp!
+Combo #2: Novice Engineer + Power Overwhelming: Novice draws a card when you play it so you don't have to worry too much about it dying. If you use Power Overwhelming on it, you can kill any 5 health creature. You will have used up only one card and your opponent will have used up one card too. But you likely spent less mana, thinned your deck, and possibly attacked with Novice earlier, so it's good for you. Further, trading one for one is usually good because you can draw new cards more easily than your opponent.
+Combo #3: Argent Squire + Shattered Sun Cleric, Coin Optional: Dark Iron Dwarf and Defender of Argus both work great too. The idea here is to take advantage of Divine Shield. Suppose you are going second and play squire and your opponent plays a 3/2 creature. Now you can coin out Shattered Sun Cleric and kill his 3/2, while ending the turn with a 2/2 and a 3/3 out. That gets you a big lead early! Meanwhile, Dark Iron Dwarf can turn Argent Squire into a Scarlet Crusader which can also be really efficient.
+Combo #4: Shadowflame + Power Overwhelming: Play a small creature, preferably a Novice Engineer or perhaps a Flame Imp. Then make it big with power overwhelming, and if you didn't play it this turn, attack your opponent for some good damage. Finally, blow it up with Shadowflame to kill all your opponent's creatures. This does more damage than a Flamestrike!
+Combo #5: Sylvanas Windrunner + Power Overwhelming: What do you do if your opponent plays a really good creature, like Ragnaros or Ysera? Yeah, you have a lot of ways to kill it but I heard that Priest card, Mind Control, is pretty good. Don't you wish you could just steal it? Well, you can and Warlock’s version of Mind Control only costs 6 mana, not 8! All you have to do is use your other creatures to kill off all the opponent's creatures except for his good one, which is usually not too hard. Then you play Sylvanas and play Power Overwhelming so that she will die. At the end of the turn you steal their strong creature.
It's even better if Sylvanas was already in play. Then you can use Power Overwhelming on her and attack for 9 damage (to their face, or to kill off one of their extra creatures) before she dies!
Note that if they have several creatures, you can use Soulfire to kill one so you steal the right thing, just make sure you play Sylvanas and Power Overwhelming first so they don't get discarded.
+Combo #6: Sylvanas Windrunner + Shadowflame: What if your opponent plays a powerful Taunt card Tirion? If you kill your Sylvanas, you may end up stealing his Silverhand Recruit. The Taunt protects his other creatures, and the other creatures protect the big one from Sylvanas. You could sacrifice Sylvanas with an attack and hope to get lucky but there is a better way! Play Shadowflame on Sylvanas and it will clear out all your opponent's weak creatures. The only survivor will be the strong creature you wanted to steal with Sylvanas, so you're guaranteed to steal it!
+ /Combo #7: Jaraxxus Hero Power(Infernal) + Shadowflame or Defender of Argus: Jaraxxus's weakness is that he's a slow card. He costs 9 mana and doesn't do a lot the turn you cast him. Worse than that, he doesn't do much the next turn either. You can summon an Infernal but it can't attack yet. It's only 2 turns after you play Jaraxxus that you can first attack with an Infernal. However, you can take advantage of an Infernal before it's able to attack. How? There are two great options here. You can Shadowflame the Infernal to kill all your opponent's creatures or you can use Defender of Argus to give the Infernal Taunt.
Let's look over a few of the card choices so you can understand why each card is in the deck. We'll go over creatures organized by mana cost, then spells. Keep in mind that mana cost plays a huge role in the card choices.
For the 1 mana creatures, I want things that don't die too easily. Flame Imp and Blood Imp are great. Argent Squire and Voidwalker survive much better than the alternatives and you can even Demonfire the Voidwalker.
The power of low cost minions!
For 2 mana creatures, Novice Engineer is selected because you get the card draw immediately and it's a good top deck when you have a lot of mana. She also has 2 health so it stands a better chance of living long enough to be buffed by Shattered Sun Cleric or Dark Iron Dwarf. Knife Juggler works well in a deck with this many low cost creatures so he gets to shoot often.
At 3-4 mana we have the buff creatures: Sun Cleric, Dark Iron Dwarf, and Defender of Argus. These are great for improving your earlier creatures to let them trade up for larger creatures or kill your opponent quicker.
For 5 mana, we have Azure Drake. Azure is a good card because you can play it and then Soulfire for 5 damage immediately. It's also a 4/4 that draws a card. The reason for only one Azure is that it takes a lot of mana to cast them and the cards they drew in the same game. After testing many games, I've come to the conclusion that 1 Azure Drake provides the best pacing for the game. We also have Sylvanas at 5 mana because she's an amazing card, especially with all the possible combos in this deck.
For 6 mana we use Argent Commander because it's such a strong card and belongs in almost every deck. The combination of Charge and Divine Shield lets you kill an opponent's creature and get a 4/3 creature of your own. It can also help finish off your opponent to end the game.
For spells, Soulfire does a great job of getting the initiative or finishing off an opponent. Mortal Coil helps control the board early or trade up while drawing a card. Demonfire helps kill your opponent's early creatures but if they don't play creatures you can still use it to buff your creatures’ health out of area of effect spell range and increase their attack for more direct damage. Power Overwhelming can help kill big creatures or help finish off your opponent and is useful in several combos. Shadowflame is a powerful card capable of killing many creatures at once. Finally, Jaraxxus gives you a huge amount of late game power once you start bringing out those Infernals.
I've considered and tested many alternative cards for this deck. Some are solid cards which I sometimes use if I know what deck I'm playing against. Others are less good and I don't recommend them. First let's consider some of the cards I would most often add to the deck against specific opponents.
Earthen Ring Farseer: This is a good card which I will add in against Mages and really aggressive decks. In the majority of games you will be more aggressive and protect your life that way. But some decks are just super aggressive and the combination of a healing ability and a creature can help fight them. Mages can also Pyroblast you directly even if you have board control so healing and killing the Mage are your only defenses. The Farseer can help with both.
Siphon Soul: This card costs a lot of mana and many opponents won't give you an ideal target. There aren’t too many ideal targets out there because any creature that is worth using a Siphon Soul removal is also a good target for Mind Control (or Sylvanas!). However, Siphon Soul is a good addition if you know you're playing against a deck with plenty of big creatures.
Acidic Swamp Ooze: There's not a lot to say here. I wouldn't use Ooze against a random deck, but I would be happy to add it if I know my opponent is using weapons. One tip is not to remove your Knife Jugglers for Ooze. Ooze is a card you will sometimes save past turn 2 to destroy a weapon, so if you remove your early creatures for ooze then you slow the deck down. More often I would consider removing Thalnos and Mortal Coil to add Oozes.
Loot Hoarder: Loot Hoarder isn't the ideal card against Mages, Rogues, Druids, and sometimes Paladins because their hero power can kill it off. It's not a disaster in that case, but it's not the best either. It works better against the other heroes so I would consider adding it in against them. Be especially careful against Priests. It's still a great card except for two major problems: Shadow Madness and Cabal Shadow Priest.
Faerie Dragon: Faerie is good against enemies who rely on kill spells, such as Mages and Priests. It's a solid alternative to Knife Juggler. The reason I normally use Juggler is because I have so many cheap creatures that I can get a lot of juggles. Also, I have plenty of other creatures that can be targeted by the opponent and their removal will still be useful even if I play Faerie Dragon.
Cards That Didn't Make the Cut
Void Terror: This is a powerful card that makes a great combo with Power Overwhelming or Sylvanas. It also interacts well with Blood Imp because it can "double dip," gaining health from the buffed creatures it consumes and then being buffed by Blood Imp itself. It's also useful for saving power from weak creatures that would die soon. If you have a 3/1 creature that you expect to die next turn, you can Void Terror it and get a 6/4 that's much harder to kill. Another good idea is to Void Terror a Novice Engineer or Thalnos against a Priest, which gets you a 4 attack creature (immune to Shadow Words) with too much hp to be killed by Argent Commander. However, Void Terror is a risky card which can do badly against silences or hard removal spells like Hex. Because the Warlock deck wins so consistently, I hesitate to add risky cards.
Abusive Sergeant: I like 1 mana creatures but we already have eight of them. This guy is good because he helps you trade up. But he's very weak against the Mage hero power if you don't have a Blood Imp out and he frequently dies to area of effect damage spells. I prefer Argent Squire and Voidwalker because they are more durable and Flame and Blood Imps because they are pretty amazing in general.
Harvest Golem and Scarlet Crusader: These are similar cards with 3 mana cost and have "two lives" in a sense. They are both good cards that I would consider using in other decks. However for this deck they cannot compete against Shattered Sun Cleric at 3 mana. This is a deck that has a lot of cheap creatures and focuses on taking board control so the Sun Cleric is the best 3 mana choice. The main reason I don't use Harvest and Scarlet is that I don't really want more 3+ mana cards unless they are really exceptional. Harvest and Scarlet are good, not amazing, so they won't get me to raise my mana curve, miss Life Taps, and have a less consistent first 2 turns.
King Mukla: Mukla is usually a great card on turn 3 (or 2 with coin) but the bananas are a serious problem and he's really bad when you're behind without board control. He can also be a bad card to draw later in the game so adding him to the deck would be a risky choice. Again, I currently don't feel the need to take a risk like this since the deck is so consistently strong.
Ragnaros (and Ysera): Ragnaros costs 8 mana, which is a lot. If you add him to the deck, sometimes you will draw him early on and he will sit in your hand for a while not doing anything. Sometimes he will shoot the wrong thing and then get Polymorphed. He is a powerful card for sure but I've found that having a very strong early game gives the deck the most consistent chance at winning. He's also bad against Mind Ccontrol. Ysera is similar to Ragnaros except significantly slower so don't even think about adding her.
Shadow Bolt: The problem with Shadow Bolt is that, like Mortal Coil, you don't always have a good target. To have a deck that can win consistently, it's really important to minimize the number of situational cards that will sometimes sit in your hand without doing much.
Sunfury Protector, Sen'jin Shieldmasta: These cards can be helpful against aggressive decks including Hunters with Unleash the Hounds. They are worth adding in occasionally if you know the content of your opponent's deck. But in general I don't recommend them. It's usually safer for this deck to just take the initiative and play aggressively, not try to defend with taunts.
Leeroy Jenkins, Doomguard, Succubus, Felguard, Pitlord: These are all risky cards that will sometimes win you games and sometimes be detrimental Because the deck does so well already, it's a bad idea to add inconsistent cards that mess a good thing up. Taking risks like this is currently unnecessary.
Drain Life: Drain Life is a weak card. I know some people like it, but they are mistaken. 3 mana to deal 2 damage is simply bad. Yes you get 2 life, but that isn't enough of a bonus to make up for 3 mana 2 damage being way too weak.
This deck contains some expensive cards. What if you don't have them? There's no epics, but there are three legendaries. What can you substitute for them? Which should you craft first? Here's my suggestions, ranked in order of the priority to craft them:
Craft #1 Sylvanas Windrunner
Sylvanas might be the best card in the game. Craft her for this deck and put her in your other decks too. She is absolutely amazing. I would recommend keeping her in all versions of the deck (both more aggro or more control) if you have her. If you don't have her, you can use a Harvest Golem or Venture Co. Mercenary.
Craft #2 Lord Jaraxxus
Jaraxxus is a good card but he's not useful in many other decks. I wouldn't feel too bad about playing the deck without him. If you have Ragnaros, he is a good substitute card. Other good substitutes include Siphon Soul, Earthen Ring Farseer, or Loot Hoarder.
Craft #3 Bloodmage Thalnos
This might be the least important card in the deck, so if you don't have it, don't worry. Don't craft Thalnos just for this deck. Loot Hoarder is a fine substitute. You could also use Harvest Golem or Elven Archer.
Depending on the class, this deck can have from a slight less than even win rate all the way to 95% win rate. Here we'll talk about all the class matchups for this deck in order of worst matchup to best matchup. Generally, classes will do better against this deck if they have more tools available for the early game. For instance, the best matchup for the deck is against Priest while the worst is against Mage. Speaking of Mage...
Mages are dangerous. Your main goal here is to control the board, kill all his creatures, and then attack him. Once he starts attacking your minions instead of your hero, you're in good shape. Just keep the pressure on so she can't get you to low HP. Very good aggressive Mage decks can be a bit of a coin flip ‒ if they draw good early game cards you can lose badly; conversely, if they draw badly, you can also win just as badly.
Be careful going below 15 life since that is close to the range of Fireball + Pyroblast ‒ being above 20 life is safer. Often you should save Jaraxxus until after they cast Pyroblast or at least Fireball on you unless you would die. Jaraxxus restores you to 15 health after a Mage burns you down, which can win you games. Watch out specifically for and play around Blizzard; if you survive early game relatively unscathed, Blizzard is one of the only ways for the Mage to get back into the game.
Most Warlocks play aggressive decks that aren't as well optimized and are thus more prone to bad hands. Therefore, you'll have the edge. Play the same as usual, trying to get and maintain board control. Shadowflame and Hellfire are very important cards in this matchup so consider adding more if you sideboard, and try not to lose to them in case your opponent has them.
Some other Warlock decks use Molten and Mountain Giants plus board clears like Hellfire and Shadowflame. They also use Sunfury Protector and Defender of Argus to give their Giants Taunt. Play aggressively and kill them as fast as possible. In most matchups you have a reasonable chance in longer games but against the Giants Warlock deck you'll need to win quickly. When their first big creature comes out, you have to carefully consider whether to attack them for the quick win or kill off their creature. It will take practice to make good decisions in those situations. Keep in mind that if you leave a Giant at 8/8 and attack them, they may give it Taunt and then use Faceless Manipulator to copy it.
Also, keep in mind that the card Sacrificial Pact is the dumbest thing ever in Warlock mirror matches. Not only does it kills your opponent's demons for 0 mana while healing you for 5 health, it can even kill Jaraxxus and instantly win the game. I hope Sacrificial Pact is changed to target only friendly minions (and to heal for more like 10 health, so it's not so bad). In the mean time, Sacrificial Pact should be banned from tournaments in my opinion. When I played against other Warlocks in recent tournaments with sidedecks, we usually agree not to use it.
Miracle Rogue is a good matchup. Play stuff aggressively and attack them. In general, playing regular creatures and attacking will win the game faster than setting up a combo.
A Rogue who builds her deck around Sun Cleric and Dark Iron Dwarf is a tougher matchup. Their weapons are powerful but you get to draw more cards with Life Tap. Both classes are excellent in the early game, so the battle in the early game will be crucial as whoever gets momentum first will usually keep it throughout the game. As usual, focus on getting creatures out quick and killing off all their creatures. If they don't have targets for their Sun Cleric and Dwarf and you have targets for yours, then you'll probably win.
The hardest type of Shaman to face uses Shattered Sun Cleric itself and fights hard for early board control. Stormforged Axe is the biggest danger at the start. Then be careful about losing too many creatures to a Lightning Storm. Considering using Life Tap once you have several creatures out against none. As the game moves on, you will probably use Argent Commander as normal. The difficult part is that Shaman has both Argent Commander and Fire Elemental. It's kind of like having two Argents against four. However, the card advantage from Life Tap can make up for it and you can still go above 50% in this matchup.
Some Shaman decks try to kill you with Bloodlust. They either use Murlocs or some other aggressive creatures. If they get lucky you will die, but it's still a good matchup. You have plenty of early game power, so just don't let them get an army built up.
Another type of Shaman uses a stealth creature, usually Stranglethorn Tiger, combined with Windury and damage boosts like Rockbiter Weapon, Flametongue Totem, and Abusive Sergeant. Like other combo decks, this deck has a weaker early game than you do. Play creatures and attack and put on a lot of pressure. If you get a slow start they might have a chance, but in a race between your aggression and them pulling off their combo, you will usually win.
Finally, there are slow control Shaman decks. You'll take the initiative easily at the start. Kill their totem every turn and never let them attack with any creatures. Your board control will make their buffs (like Flametongue Totem) useless and prevent Mana Tide Totem from providing value. When they play Earth Elemental, spend what you have to in order to kill it immediately and keep attacking. Don't worry about trading Soulfire and a creature (3 cards total), the overload will cause them big problems next turn. If they aren't dead yet, use Life Tap to counteract their card advantage and keep on the pressure until you finish them off.
A lot of Hunter decks use Unleash the Hounds to try to kill you in one turn. Most people will say to rely on Taunts and although you do have three Taunt cards in your deck, your priority should be to keep on the pressure instead of getting your Taunts. Unless they are really lucky, it will take them longer to set up the perfect combo in their hand than it takes you to kill them. You have the advantage. A big part of this matchup is knowing all the Hunter traps and knowing how to deal with them efficiently.
Some slower Hunter decks try to control the board with a lot of creature killing spells. Just get off to a quick start and keep the pressure up and you have the advantage.
Another type of Hunter deck is very aggressive with charge creatures and damage spells. They are dangerous and have a decent shot at killing you before you kill them. Be careful about using Life Tap if the game is almost over and another card won't change what turn you win on, but don't be shy about Life Tap in the early turns.
Fast Paladin decks can keep up with you early but run out of cards too easily. Usually their answer for this is Divine Favor, but since you'll also be burning through cards, Divine Favor won't be as effective for you. You have the edge. Keep killing off their creatures so they have no targets for Argent Protector, Sun Cleric, Blessing of Kings, etc
Slower Paladin decks will struggle because you get too big of a lead early on and you can keep up the pressure instead of running out of cards like non-Warlock aggressive decks often do. If they live to late game, you can win with Jaraxxus as long as you kept the initiative before to that point. They may have some strong late game cards, but if you make Infernals for a few turns while he's defending, you're going to win.
Aggressive Warriors can keep up with you, but will struggle to kill you. Then they will usually run out of cards but you won't, so you win. They have some powerful ways to deal a lot of damage fast, so you can't win every game, but you can certainly win more than half.
Other Warriors play a slower approach, possibly with the Molten Giant, Warsong Commander, and Youthful Brewmaster combination for the finishing blow. Or they may have a bunch of weapons. Either way, play your creatures and kill them. If you suspect Molten Giants, it's usually still better just to keep attacking and not care about letting them get 0 mana Molten Giants; they probably didn't draw everything they need yet to be able to kill you from high life.
Some Druids play similar to Mages. They have some early aggression and some spells like Swipe and Starfire. This is an easier matchup than against Mages because there is no Pyroblast or Double Fireball to worry about; Wrath and Starfall cannot target your hero. Also, Druids have fewer early game options compared to Mages, so they'll have a much harder time keeping up with you there.
Other Druids play with cards like Wild Growth, Innervate, and big creatures. That's a good matchup too. You can get such a big lead early that trading inefficiently for a couple large creatures is an acceptable loss and you win anyway.
Priests are easy. Play creatures, kill all their stuff, attack them, and try not to lose everything to Holy Nova and Shadow Madness. Almost all Priest decks are way too slow and don't really have a chance. I've tested very fast, good Priest decks and they still lose to board control Warlock.
Their best Mind Control targets are Sylvanas and Argent Commander. Never let them steal an Argent Commander with the Divine Shield still up. Note that if they Mind Control Argent Commander, they can attack with it immediately because it has charge.
Videos and VODS
Resources and Shoutouts
Reddit Bragging Rights #5 tournament games
Reddit Bragging Rights #5 grand finals, Warlock mirror
Reddit Bragging Rights #6 tournament games
I'd like to give credit to my practice partners at Teamliquid for helping with the deck. StrifeCro in particular was playing Warlock before me and made the first version of the deck. Testing the deck within our practice group against many other decks helped optimize all the card choices.
Update: Added Legendary Cards section.