Hearthpwn

This class legendary is not worth the mana.

You dont get immediate value out of him at all, since you need to cast at least one spell the turn he is played to gain 1 of his effect. Also, you lose that spell damage the next turn.... so if he gets silenced/removed, that's it. done.

I would either reduce his mana cost to 5, and make him 4/6.
OR
i would make it so that the spell damage you gain after he is played is permanent.