Dark Ascension

{1}{G}, Sacrifice a Human: Put two +1/+1 counters on target creature.

Flash (You may cast this spell any time you could cast an instant.) When Briarpack Alpha enters the battlefield, target creature gets +2/+2 until e...

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on...

Vigilance, trample Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with...