The Last Wolfir

Eminence — As long as The Last Wolfir is in the command zone or on the battlefield, whenever a
Non-Human Werewolf you control transforms,
you may pay {2}{g}. If you do, create a 2/2 green
and blue Wolf Spirit creature token. And, any
time you could cast an instant, you may sacrifice
a Wolf. If you do, transform target Human and
it can't transform until your next main phase.
Trample, undying.