Details: Heroic Duels – 5516 MMR
Passives: Mysterious Tome & Unlocked Potential

Unlocked Potential was the real core as it enables all your units to their max power level, also living blade with charge and several gromashes will benefit a lot of endgame. While choosing units remember to account for their Unlocked Potential value.

Originally I was inspired by https://hearthstone-decks.net/hearthstone-duels-12-0-warrior-6665-mmr-bruising-spiked-arms/, but changed Samuro for Brawl as it is way more consistant verus heavy minions decks.

Always keep Spiked Arms, as in case u dont hit The Floor is Lava passive(like I didnt in this case) thats your only way of enabling units especially before 4th encounter. Also on 4 mana Spiked Arms + Gruntled Patron is free win if opponent doesnt have clear.