Hapatra, Bolas' Plaguebearer

When Hapatra, Bolas' Plaguebearer enters the battlefield, put a -1/-1 counters on target creature.
Remove a -1/-1 counter from a creature: create a 1/1 black insect creature token.
Remove a -1/-1 counter from a creature: Insects get +1/+1 until end of turn.
Her vicious laughter is infused with death.