Make sure your opponents dont have unlimited hand sizes from cards like Reliquary Tower
Buster Sword Buster Sword earns its spot by being incredibly solid, even if its far from busted
I don't play HEROs at all, but this card basically gives you two Reborns for you fusions that were already knocked down or if you just need another HERO out on the field, but when you do get those two summons off, your opponent won't want to touch this thing, because if it leaves the field, you get back two fusions with +1000 each
Eventually, once you've filled up your graveyard, you can then sacrifice your zombie tokens to mill your opponent to death
27/132 Lt
Combustible Gearhulk has shown the ability to either draw you three cards or outright kill your opponent, or at least put them in range of being killed very, very quickly