Eros, The Tortured

Bloodthirst-If an opponent has been dealt
damage this turn, Eros, The Tortured enters the battlefield with a +1/+1 counter.
Whenever Eros deals or is dealt damage in a turn, put a +1/+1 counter on it.
"Enough! This has gone on long enough! It's
your turn to be tortured for lifetimes!"