Undying Hope

Whenever a white creature you control dies, if that creature doesn't have undying, put a hope counter on Undying Hope.
{b}, Remove a hope counter from Undying Hope: Target creature you control gains undying until end of turn. (When it 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.)