If Gromm can stick and you’ve got at least 2 copy cards you can have 4 of them the next turn for 40 damage on the board.
UPDATE: I’ve been playing around with this, really trying to fine-tune the balance. Took out the Gorehowl and the Forge of Souls and replaced them with a second Faceless and Rotface. Also took out one of the Battle Rage and the Rampage for Inner Rage. I’ve found the 0 cost proc to the heavy hitters can be really helpful for triggering them on the curve, but I do find myself holding onto the cards for longer than I probably should.