Avacyn, Omenpath Arisen

Flying, Lifelink
When Avacyn, Omenpath Arisen enters, prevent all damage to permanents you control until end of turn.
Whenever you would put loyalty counters on a permanent, gain life equal to the number added.
Whenever you would remove loyalty counters from
a permanent, target opponent loses life equal to the
number lost.
Avacyn, Omenpath Arisen has Flash during your opponent's combat step.