Blossoming Pack Hounds

Haste, Trample, Menace
Blossoming Pack Hounds enters the battlefield
with X +1/+1 counters on it, where X is the
number of creatures you control.
{b/g}{b/g}{b/g},{t}: Sacrifice Blossoming Pack Hounds:
Target player gains X life, where X is this
creatures power.