Helen, Lost but Found

Helen, Lost but Found can't attack.
Helen, Lost but Found enters the battlefield with
a +1/+1 counter on her.
Whenever another creature you control dies, you
may put a +1/+1 counter on Helen, Lost but
Found.
{b/r}, Remove a +1/+1 counter from Helen, Lost
but Found: It deals 1 damage to any target.