Child of the Pack // Savage Packmate (DBL-501) - Innistrad: Double Feature: (Double Faced Transform)

: Create a 2/2 green Wolf creature token.
Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Trample
Other creatures you control get +1/+0.
Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)