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Voidwalker (art).jpg

Zoolock or Zoo Lock is a type of warlock zoo deck, using a large number of cheap minions and buffs to overwhelm the opponent and trade efficiently against their minions. By far the most popular zoo deck, Zoolock is often referred to simply as "Zoo".

Zoolock is one of the most affordable and accessible decks, with a relatively low crafting cost and simple core strategy, and is often recommended for new players. Despite its accessible strategy, mastering Zoolock is far more difficult, and the deck is often a successful high-tier deck, as well as a more or less perennial deck type in the wider meta.

With One Night in Karazhan, many Zoolock decks were converted to Discardlock, with the new focus on discard effect synergies, and it was not until some revitalization with cards such as Prince Keleseth, Acherus Veteran, and Bonemare in Knights of the Frozen Throne that original Zoolock made a decisive comeback.

Deck type[edit | edit source]

Zoolock's key strategies are to flood the board; control the board; and trade efficiently. Optional deck variants such as Sea Giant reward the number of friendly minions in play, while others such as Dire Wolf Alpha simply require minions that are ready to attack, and summoning-related cards like Knife Juggler and Darkshire Councilman reward frequently summoning minions, regardless of their size.

In the early game, Zoolock aims to quickly fill the board in the first few turns with its cheap but threatening minions. Once the opponent starts playing minions, Zoolock focuses heavily on trading, very rarely going face until lethal is within reach. Zoolock has excellent trading ability, due to buffs like Acherus Veteran and Defender of Argus. These effects allow the Zoolock to clear the opponent's board efficiently, consuming the opponent's tempo while conserving and building their own.

Chipping in small amounts of damage each turn over the early game while establishing the board control, the Zoolock is able to quickly near lethal, at which point their strategy switches dramatically: abandoning trading, they employ all minion damage, attack buffs and spells to damaging and defeating the enemy hero. Given the deck's dependence on preferential trading, this is usually only wise if the Zoolock has lethal that turn, or possibly the next, since if they fail to achieve lethal as a result of a reckless rush for the face, they will likely go on to lose the game.

With its reliance on board presence, the main weakness of Zoolock is to area of effect (AoE) removal such as Flamestrike, Lightning Storm and Consecration. In order to counter these effects, Zoolock often includes "sticky" minions such as Skelemancer and Possessed Villager, making it harder for the opponent to clear the board. However, the threat of AoE removal remains strong, and Zoolocks must always consider whether to flood the board with as many minion as possible, or to hold back so as to force the opponent to waste their removal in a sub-optimal play. Ideally, Zoolocks play around removal through trading, sticky minions and holding back a number of cards with which to rapidly repopulate their board, something made easier by the low cost of their minions.

In addition to the overwhelmingly low-cost majority of their decks, Zoolocks often also include a small number of big minions, as finishers, optional win conditions or specific combo pieces. Common choices include Sea Giant (or for new players the Basic Frostwolf Warlord), and Leeroy Jenkins, but all of these are optional and tend to come and go depending on the current meta and deck fashions. Doomguard is arguably the only perennial Zoolock finisher, with the Zoolock either using it as a burst of damage to end the game, or else emptying the hand before playing it to negate its drawback.

The early game is critical for Zoolock. Luckily, the low cost cards predominant in the deck ensure that the Zoolock will almost always have cards they are able to play that turn. In addition, Zoolocks make liberal use of Life Tap to keep a good range of options in hand, allowing them to maintain their tempo into the later turns when their cheaper cards can be played several in a turn. Zoolocks should always mulligan hard for cheap cards, with the number of viable cards allowing Zoolocks to be fairly picky in their choices.

In The Boomsday Project, a new type of Zoolock came to rise, a version that makes use of healing. Instead of a typical board full of strong but fragile minions, it uses somewhat more durable minions and greater use of buffs. With cheap early-game heals it can summon a free Happy Ghoul for early tempo boost. When their board is weakened, Fungal Enchanter heals them back up to maintain their board strength, which is also combined with Lightwarden to give them a huge damage boost, making them very threatening to remove short of board clears.

Common Cards[edit | edit source]

The following cards are usually in the deck.

Core cards[edit | edit source]

The following cards are played in most or all versions of the deck:

Flame Imp(85).png
Kobold Librarian(76926).png
Soul Infusion(89907).png
The Soularium(89881).png
Prince Keleseth(58723).png
Doubling Imp(89908).png
Saronite Chain Gang(62901).png
Hooked Reaver(77010).png
Despicable Dreadlord(62903).png

Healing variant[edit | edit source]

Voodoo Doctor(410).png
Happy Ghoul(62902).png
Fungal Enchanter(77003).png

Optional cards[edit | edit source]

The following cards are played more than occasionally, but not always:

Fire Fly(55466).png
Glacial Shard(55485).png
Dire Mole(76996).png
Acherus Veteran(62948).png
Mortal Coil(43).png
Knife Juggler(422).png
Dire Wolf Alpha(305).png
Vulgar Homunculus(76925).png
Tar Creeper(55456).png
Devilsaur Egg(55567).png
Vicious Fledgling(55584).png
Phantom Militia(89337).png
Summoning Portal(566).png
Ravenous Pterrordax(55510).png
Cobalt Scalebane(62851).png
Omega Agent(89822).png
Leeroy Jenkins(674).png
Glinda Crowskin(89352).png
Sea Giant(614).png
Bloodreaver Gul'dan(62934).png

Wild cards[edit | edit source]

Wild icon.png  This section contains information exclusive to Wild format.

Wild cards that fit well into this deck type:

Forbidden Ritual(35217).png
Malchezaar's Imp(42027).png
Possessed Villager(33171).png
Power Overwhelming(170).png
Dark Peddler(27243).png
Haunted Creeper(7756).png
Nerubian Egg(7738).png
Darkshire Councilman(35224).png
Imp Gang Boss(14443).png
Bloodfury Potion(49698).png

External links[edit | edit source]