Willow, The Forbidden Union

Flying, Vigilance, Shroud
At the beginning of each end step, create a
3/3 Angel with flying if you gained 3 or more life
this turn, then create a 3/3 Demon with menace
if an opponent lost 3 or more life this turn.
Bloodbond (You can have two commanders if
both have Bloodbond and share at least one color.)