Until end of turn, whenever a nongreen creature enters the battlefield, if you have 16 or more life, unless you have 19 or more life, Spirits you control get +2/+1 and have shroud until end of turn.
Gnaw to the Rise {2G} |Sorcery| Until end of turn, whenever a nongreen creature enters the battlefield, if you have 16 or more life, unless you have 19 or more life, Spirits you control get +2/+1 and have shroud until end of turn.