Angel of Pride's Fall

Flying, afflict, haunt
Siphon 3 (As this creature enters the battlefield, you may pay 3 life. If you do, this creature enters the battlefield with an additional two +1/+1 counters on it.)
{t}: Gain control of target creature for as long as you control Angel of Pride's Fall. When Angel of Pride's Fall leaves the battlefield or becomes untapped, destroy that creature. It can't be regenerated.