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
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
Participating in Tournaments and Events A great way to improve is to participate in local events and tournaments
If you're set up within a few turns, you should be looking at the higher bracket levels instead of the lower
With Ms
Buster Sword Buster Sword earns its spot by being incredibly solid, even if its far from busted