The Bombinomicon

Equipped creature has First Strike and Trample.
At the beginning of your upkeep, place a Bomb counter on equipped creature.
Bomb counters can be passed to another creature through attacking.
Creatures with a bomb counter on them have, "At the beginning of your end step, if this creature has a Bomb counter, destroy this creature."
Equip {4}
"Hey, here's a bomb. Now go run at that wizard."