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Mecha'thun Warlock deck list guide - Rastakhan - Hearthstone (December 2018)

Our guide to getting started with the Warlock's take on triggering Mecha'thun.

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About John Bedford

John is Metabomb's Editor in Chief, and is responsible for all of the Hearthstone news, features and guides content on the site.

Our Mecha'thun Warlock deck list guide features the best Rastakhan deck list for Season 57 of Hearthstone (December 2018). Our Mecha'thun Warlock guide also contains Mulligan advice, card combos and strategy tips.

Mecha'thun Warlock is a new Hearthstone archetype to launch with The Boomsday Project, and sees players using the hero's unique tricks of the trade to trigger that devastating Deathrattle effect of the Mech in question.

If you're not familiar with how Mecha'thun actually works, it's pretty simple. If you have no cards left in your deck, none in your hand, and Mecha'thun is the only friendly minion on the board, he'll instantly obliterate the opponent when he dies. It's quite a puzzle for each hero to work their way through!

In the second edition of our Mecha'thun Warlock guide, we've got an overview of a solid deck list that's been tried and tested in the live meta. We've also got a snapshot of the strategy involved in playing it, followed by a few tips on the Mulligan phase, then a breakdown of the combos contained in the list. If the deck proves successful, we'll update all areas of it over time.

UPDATE - BOOMSDAY #3

Now that the immediate launch window is behind us we've been able to properly fold the latest deck list into our guide. Check through the new combos and synergies before taking this one to the ladder!

Mecha'thun Warlock deck list and strategy

To the best of our knowledge this is the most consistent version of Mecha'thun Warlock you can play right now, although it's far from a top-tier deck. Still, this is about as good as it gets if you're determined to ladder with this one!

WarlockNeutral
2 x Kobold Librarian1 x Bloodmage Thalnos
2 x Mortal Coil2 x Galvanizer
1 x Bloodbloom2 x Stonehill Defender
1 x Curse of Weakness2 x Giggling Inventor
2 x Defile2 x Rotten Applebaum
2 x Drain Soul1 x Mecha'thun
1 x Cataclysm
2 x Hellfire
2 x Lesser Amethyst Spellstone
2 x Despicable Dreadlord
1 x Lord Godfrey
2 x Twisting Nether

Select and copy the long ID string below, then create a deck in Hearthstone to export this deck into your game.

Deck Import ID: AAECAf0GBu0FkMcCzukCw/MCnPgC8fsCDNsGtgfECJvCAufLAqLNAvfNAvLQAojSAsXzAuL4Atf+AgA=

More great guides:

General strategy

This is essentially the Even Warlock deck you may already be familiar with, given a new twist to build Mecha'thun into the list.

Your first job is to thin down your deck as much as possible using your Hero Power and cards like Kobold Librarian. You also have powerful cards like Defile, which you can utilise to keep the opponent at bay - just watch your maths, and factor in the potential of Bloodmage Thalnos while you're at it!

As the game wears on you want to keep drawing through cards and stalling the opponent, something that becomes even easier once you can start playing cards like Despicable Dreadlord, Giggling Inventor and Rotten Applebaum. Don't forget the board-clear potential of cards like Lord Godfrey either, which is effectively a turbo-charged Defile which also hands you board advantage.

When Mecha'thun is in your hand, you play two Galvanizer minions to reduce its cost to eight Mana. On the next turn, you drop Mecha'thun, then cast Bloodbloom, then cast Cataclysm to obliterate Mecha'thun and win the game. Just make sure there's nothing else left in your hand except Cataclysm when you pop it.

That's the very rough overview of playing the deck, then, but you'll find more detailed advice in the combos section towards the bottom of this article. If the deck proves competitive we'll flesh out all areas of this guide to help you handle specific match-ups.

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Mecha'thun Warlock Mulligan guide

Here's an overview of the cards you should think about keeping when playing Mecha'thun Warlock:

  • 1. Kobold Librarian - A fantastic Turn 1 play that not only gives you board presence but also helps you begin the process of drawing through your deck.
  • 2. Stonehill Defender - Vital early-game protection that allows you to keep drawing cards while putting up at least some kind of defensive wall against the opponent.
  • 3. Mortal Coil - A valuable ping - particularly against aggro decks - which often picks off a minion while contributing to that essential card draw cause.
  • 4. Bloodmage Thalnos - A lesser consideration than the other cards in this list, Thalnos will nevertheless boost your spells - which may help with a Defile clear - and also grant you an extra card when he dies.

Mecha'thun Warlock tips, combos and synergies

If you're unfamiliar with Even Warlock - or are not entirely up to speed on the Mecha'thun mechanic - here's an overview of the core combos contained in this exact version of the deck:

- When Defile is cast, one point of damage will be inflicted against both friendly and enemy minions. If anything dies as a result, the spell is cast again. This repeats until no minions die from the repeat damage.

- Galvanizer is a key card in this deck and both copies should only be played to reduce the Mecha'thun that's sitting in your hand.

- Remember that Hellfire damages minions on both sides of the board and also inflicts damage against both heroes as well.

- Genn Greymane is an important part of this deck, allowing you to fill out your Mana curve - and empty your deck faster - thanks to the reduced-cost Hero Power he provides.

- In its most basic form, Lesser Amethyst Spellstone does three points of damage to a target minion. If you take damage from your cards though - such as Hellfire - while it's in your hand, that damage output increases to five. Take more damage and the Spellstone maxes out at seven.

- Factor Dread Infernal into your maths before playing him. A point of damage will be inflicted against all other minions and both heroes when you do so. This may have trigger potential for a card like Defile, for example.

- Think through your maths a second time before casting Lord Godfrey. You're looking for a board state that offers as close to a 2 / 4 / 6 / 8 / 10(!) trigger position as possible. If you can partially trade in order to set this position up across both sides of the board, then do so.

- For the sake of thoroughness, we'll remind you of the Mecha'thun combo. You reduce his cost with both Galvanizers, clear out your deck and your hand, ensure he's the only minion on the board, then drop him with Bloodbloom followed by Cataclysm.

Comment on this article

  • thefluvirus #1 2 months ago
    Because cataclysm discards your hand it works as you as soon as you draw your last card. you dont need to empty your hand
    Sign in to reply

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