Kodlak, Moon's Harbinger

Trample, nightbound, werewolves you control have haste

When Kodlak attacks, add {r} for each of
your attacking Werewolves.

{x}, Sacrifice a legendary permanent: Werewolves
you control get +X/+X until the next end step. Then, if Kodlak was sacrificed for the cost of this ability, gain X life.