Hearthpwn

Awesome and fun combo deck. 

Win condition #1: Thousands of armor, hit end turn button, opponent mills self and fatigue damages to death. Most opponents can't get through thousands of armor. They try at first but then the realization sets in and they concede after a few turns. 

Win condition #2: Mecha'thun. You can either play it at end when you have no deck or cards and win when it dies, or play it then play poison seeds with empty hand and deck to trigger deathrattle.

Credit to burnt_hs who played this to #21 legend. Deck is a blast. Deck does well vs. most midrange, control, combo, and aggro. Can lose vs. very fast aggro if you draw poor. Can outvalue most control decks with the armor and guaranteed win conditions. 

Basic combo: Linecracker, BEEEES!!! once or twice into linecracker (depending on how much time you have, twice preferred), then Earthen Scales (again once or twice depending on how much time you have). The full combo of Linecracker, bees x2, and earthen Scales x2 is around 2500 armor. 

Super combo: Same as above but use Solar Eclipse before each Earthen Scales. This one is >5,000 armor. See screenshot above. 

It would take an opponent 20 turns of doing 100 damage a turn to go through  2,000 armor. Or 40 turns of 50 damage a turn. Most meta decks can't do this level of damage and die of fatigue before this point. 

Defensive package: Spreading Plague, Poison Seeds, Branching Paths, Ferocious Howl. Use Solar Eclipse to maximize these. Naturalize and Lesser Jasper Spellstone help too.

Disruption: Dirty rat x2. 

Mana and mana cheating: You need minimum 11 mana to combo. Wildheart Guff to get past 10. Biology project and hero power. Linecracker into Floop's Glorious Goop into BEEEES!!! From there, the goop will recharge your mana. You can also do it with 10 mana if you have a minion on board, use Linecracker, then Goop, kill 1 of your minions into one of opponents, and that'll get you 1 mama back to play Beees with 3 remaining. Goop recharges from there into second Bees, then Earthen Scales x2. 

Card cycle: Moonlit guidance to get more defensive pieces, combo pieces, or draw depending on what you need. Branching Paths and Ferocious Howl. Guff hero power. Solar eclipse can amplify card draw spells as well. Be careful to not burn Mecha'thun and Linecracker with Fungal Fortunes. For example, If you have 3 cards left and haven't drawn any minions, then don't use it. Burning one Linecracker is ok, but both is a loss. 

Mulligans: Card draw vs. slower decks and combo decks. Armor and card draw vs. aggro. Can keep Wildheart Guff vs. Slower and control. Never keep Linecracker. 

Weaknesses: Dirty rat and mutanous the devourer can ruin your day, so again, never keep Linecracker.