Volvara Wolftree

Trample, lifelink
When Vovara Wolftree attacks for the first time, flip a coin. If you win, Volvara Wolftree gains deathtouch until end of turn. If you lose, put a +1/+1 counter on Volvara Wolftree.
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 it.)