Berserker Fury

Whenever a creature enter battlefield under your control, you may pay {1}{b/r} to give it Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)
You will be swallowed whole by me. At that moment
no one will be able to stand in our way. So these fang will chew, racing with hatred and ecstacy, on the true light that burn me.