[+1]: Put a +1/+1 counter on up to one target creature. [-3]: Target creature gains flying and double strike until end of turn. [-8]: Create X 2/2 white Cat creature tokens, where X is your life total.
Flying When Angel of Serenity enters the battlefield, you may exile up to three other target creatures from the battlefield and/or creature cards from graveyards. When Angel of Serenity leaves the battlefield, return the exiled cards to their owners' hands.