So I struggled to use most of the available decks.
And because he plays "Cho" (gives the opponent a copy of a spell) and the unwanted dwarf that makes spells cost 0 mana.
I figured to use it t my advantage .
Now because his hero power summons a 1/1 taunt, mage's hero power has it under control every round.
I defeat him first try with my own deck, maybe it's because I have the face Hunter vibes.