Persevering Hope

First Strike, Persist (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.)
Whenever a creature leaves the battlefield Persevering Hope gets +1/+1 until end of turn.
"I can't die here! They're depending on me! I'll make sure they all survive... even at the cost of everything i can give."