Gumball

When Gumball enters the battlefield, or attacks a player, you may put one bubble counter on target creature that player controls. It cannot untap or block, and gains “Sacrifice this Creature: Deal 2 damage to this creature’s controller.” If Pomengranite enters the battlefield under your control, instead of putting a bubble counter, put a -0/-5 counter instead on target creature. If it dies, gain 2 life.