Paetra Hollowstone

+1: Create a 1/1 green Critter creature token, then put a +1/+1 counter on each Critter you control.
+1: Tap any number of untapped Critter or Beast creatures you control: Paetra deals 1 damage to target creature for each Critter or Beast tapped.
-7: Until end of turn, Paetra Hollowstone becomes a 12/16 green Beast creature, and creatures you control gain trample and indestructible.