Hearthpwn

My Stats/History (games played mostly in D5 - legend):

31-16 (66%) -- Last 10 days; most recent builds of the deck.

46-34 (57%) -- All time since Version 1 in late April 2021.

Best Class Matchup -- Hunter [9-2] 82% & Rogue [2-0] 100% (insufficient data atm)

Worst Class Matchup -- Druid [4-5] 44%

Tips:

Razormane Battleguard -- The absolute star of the deck, and the reason I made it in the first place. This card is nuts, especially against classes that have a tough time answering it early (Druid, Paladin, Warrior, Rogue, Priest). Always keep on mulligan in every matchup.

Dreaming Drake -- Most often you will play this without corrupting it due to the low cost of the deck. However, corrupting it is a breeze when you have Razormane Battleguard discounting it.

Mark of the Spikeshell -- Main use is to duplicate Greybough or another taunt for Razormane Battleguard to discount but don't be afraid to use it to enable a good value trade on board.

Soul of the Forest -- Always keep in mind opponent's AoE cards. Try to play the turn before they can clear. Always consider if you will have more minions next turn than this turn before you play. Greed can be necessary in aggro.

Annoy-o-Tron -- Always kill your opponent with this unit when you're able to unlock the Annoy-o-Tron achievements for yourself and your opponent :)

Why no?

Toad of the Wilds -- We have a small hand size generally and Nature spells aren't always guaranteed.

Lightning Bloom / Innervate-- We run minimal card draw and very little spell support. Felt like a sad card to draw most times and doesn't enable enough.

Twilight Runner -- We always want to hit Greybough with Taelan Fordring, and it's too slow for this deck anyways.

Archspore Msshi'fn -- K'thir Ritualist is better if you want another taunt. The 10 drop will be a dead draw for you and the 4 drop will likely be a dead card for their hand. Plus it has more attack.

Plaguemaw the Rotting -- Seems like a natural fit but I could rarely get it to make a difference.

Subs/Good Cards

Voracious Reader -- A second copy can help the terrible draw power of the deck, however drawing both copies means you basically lose the game, as you can't go down 2 cards and drop 3 mana for a draw 2. I only run 1 copy to avoid this scenario.

K'thir Ritualist -- Not as much of a meme as I thought [only applies to aggro]. 4 drops are generally pretty powerful, but if the opponent plays a randomly generated 4 drop against you instead of their decks usual turn 4 play, they will often be moving too slow. I have tested this card a ton, and the opponent barely ever plays the card it generates, and even more rarely do I feel punished by it.

Gibberling -- One of the best 1 drops ever created, and I only recently took the second copy away. It suffers from the same problem Voracious Reader does, in that if you draw both, you will likely lose. Since the deck's creation, more and more cheap spells have been cut, and Gibberling has gone from a core member of the deck to your main answer to going second - pair with Coin