Hearthpwn

Beat any aggro opening or deal with a single 5 health minion. Versatile and powerful.

Dyn-o-matic without the body. Good control card to deal with small stuff in a cheap way

But you also had the luxury of often not hitting your own minions (if you were going mechs). However, of any class to have this, Warrior makes most sense.

Yes but if your opponent was using mechs, it was useless. It's only advange to this card is that it could be discovered multiple times through boom's hp or omega assembly. Don't get me wrong, dynomatic was an amazing card but I believe this is better. At least in that meta it would be (mechs were pretty popular).