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Wild format
Wild icon.png

With the start of the Year of the Phoenix, The Boomsday ProjectMecha'thun and all key cards of the deck in The Boomsday Project rotated to wild, making Mecha'thun Warlock a wild-exclusive archetype. For more information, see Game format.

The one time you don't want your opponent to run out of cards.

Mecha'thun Warlock is a combo deck with The Boomsday ProjectMecha'thun as its win condition.

Mecha'thun Warlock can be built in a variety of ways. A more control-oriented build may include slower cards such as The WitchwoodLord Godfrey, LegacyTwisting Nether, or even Knights of the Frozen ThroneBloodreaver Gul'dan. Slower versions of Mecha'thun Warlock are usually more effective against aggressive decks, but struggle to compete against other faster combo decks. Faster versions of Mecha'thun Warlock often use cards such as One Night in KarazhanRunic Egg to draw out the deck at a faster rate, but are more susceptible to aggressive and midrange decks. Due to its flexibility compared to other Mecha'thun decks, Mecha'thun Warlock can often be hybridized with other Warlock archetypes. Decks such as Handlock and Renolock are fully compatible with Mecha'thun and can use Mecha'thun just as another finisher.

Since all of the combo pieces are even, the deck is sometimes played with The WitchwoodGenn Greymane to draw faster with the discounted hero power. Some versions of Mecha'thun Warlock use Saviors of UldumSupreme Archaeology and Rise of ShadowsPlot Twist, as reducing even one of the combo pieces to zero means that other cost discounts are completely unnecessary.

How To[]

The simplest method involves playing The Boomsday ProjectMecha'thun, then Kobolds & CatacombsCataclysm. Cataclysm clears your board and hand, guaranteeing Mecha'thun's Deathrattle goes off. While this combo was much more practical when Journey to Un'GoroBloodbloom cost 2 mana (thus allowing you to use Cataclysm for two mana less), this is still possible using extra mana discounts such as Blackrock MountainEmperor Thaurissan with Knights of the Frozen ThroneDrakkari Enchanter or The League of ExplorersBrann Bronzebeard with The Boomsday ProjectGalvanizer.

Other methods of triggering Mecha'thun include:

History[]

Mecha'thun Warlock was first introduced alongside it's win condition, The Boomsday ProjectMecha'thun, in The Boomsday Project. At the time, Mecha'thun Warlock had to compete with Mecha'thun Druid, Mecha'thun Priest, and Mecha'thun Warrior. Out of the few decks with Mecha'thun, the combo of Mecha'thun Warlock proved to be effective requiring neither an empty hand nor board to be active. being a semi-competitive deck in both game formats. However, Mecha'thun Druid was more popular and more powerful due to the overall dominance of Druid in the meta and quality of the deck.

Rastakhan's Rumble secured Mecha'thun Druid as the most popular Mecha'thun Deck with the addition of Rastakhan's RumblePounce. That was followed by Mecha'thun Priest, which excelled with the addition of Rastakhan's RumbleMass Hysteria. On the other hand, Mecha'thun Warlock received practically no new cards and ceased to be a competitive deck in Standard.

Following Rise of Shadows, Journey to Un'GoroBloodbloom, Kobolds & CatacombsCataclysm, LegacyNaturalize, and Knights of the Frozen ThroneTicking Abomination rotated into Wild, making Mecha'thun Druid and Mecha'thun Priest Wild only decks. The removal of Blooodbloom and Cataclysm also crippled Mecha'thun Warlock in Standard, which now required playing a 9-mana Mecha'thun in conjunction with Rastakhan's RumbleGrim Rally, and an empty board, hand, and deck. Mecha'thun Warlock's lost advantage and prevailance of Warrior in Standard meant that Mecha'thun Warrior was the more prominent of the two remaining Mecha'thun decks in Standard.

Saviors of Uldum finally brought Mecha'thun Warlock to a more prominent position in both formats. The release of Saviors of UldumSupreme Archaeology brought more rewards for drawing cards and Saviors of UldumPlague of Flames provided more efficient removal. The nerf to The Boomsday ProjectDr. Boom, Mad Genius finally secured Mecha'thun Warlock as the most popular Mecha'thun deck since its creation in The Boomsday Project. In Wild, Mecha'thun Warlock still needed to compete with SN1P-SN4P Warlock, as it provided a both an easier combo and more flexibility. Due to the similarity between the two decks, they often merged as one, providing an extra win condition in the late-game.

Descent of Dragons and the nerf to Echo finally eliminated Mecha'thun Warlock's competitor in Wild, bringing the deck to high popularity. However, Mecha'thun Warlock was still far below the strength of a competitive deck in Standard.

Mecha'thun Warlock moved to Wild in the Year of the Phoenix, along with Mecha'thun. A few weeks into Ashes of Outland, Journey to Un'GoroBloodbloom had its cost increased from 2 to 4. While this change was aimed towards nerfing Rise of ShadowsDarkest Hour, Mecha'thun Warlock was also affected negatively by this change, now requiring more work to discount the combo pieces or alternative means of triggering the combo.

Common Cards[]

Core Cards[]

Wild icon.pngThis section concerns content exclusive to Wild format.

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

Mistress of Mixtures
Kobold Librarian
Mortal Coil
Plague of Flames
Novice Engineer
Bloodmage Thalnos
Defile
Dark Skies
Cataclysm
Mecha'thun

Dorian/Kael'thas version[]

Unstable Felbolt
Plot Twist
Dollmaster Dorian
Hemet, Jungle Hunter
Kael'thas Sunstrider

Bloodbloom version[]

Galvanizer
Hellfire
Bloodbloom
Zilliax
Emperor Thaurissan

Control Variant[]

Sense Demons
Voidcaller
Zilliax
Khartut Defender
Enhanced Dreadlord
Voidlord
N'Zoth, the Corruptor
Bloodreaver Gul'dan

Optional Cards[]

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

Supreme Archaeology
Runic Egg
Grim Rally
Doomsayer
Loot Hoarder
Questing Explorer
Licensed Adventurer
Darkbomb
Zephrys the Great
Coldlight Oracle
Drakkari Enchanter
Dark Skies
Hooked Reaver
Lesser Amethyst Spellstone
Antique Healbot
Despicable Dreadlord
Aranasi Broodmother
Genn Greymane
Siphon Soul
Reno Jackson
Lord Godfrey
Valdris Felgorge
Twisting Nether
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