big boom, the destroyer

+2: Create 3 red 1/1 goblin creature tokens with haste. Goblins you control get +1/+1 until end of turn.
-1: Target player gets an emblem with "During your upkeep, you lose 1 life. At the beginning of your untap step, untap one less permanent."
-6: Create x 1/1 red goblin creature tokens where x is target opponents life total. Creatures you control get +1/+1 and haste until end of turn.