Vishere, Defender of Kessig

Haste, trample
When Vishere, Defender of Kessig enters the battlefield or dies, you may cast another Wolf or Werewolf card from your hand or graveyard without paying it's mana cost.
Persist(When this creature is put into the graveyard from the battlefield, if it had no -1/-1 counters on it, return it to the battlefield under it's owner's control with a -1/-1 counter on it)
"Die, fiend"