Invasion of Innistrad

As Invasion of Innistrad enters the battlefield,
choose Innistrad or Phyrexia.
•Innistrad— Whenever a creature an opponent controls dies, create a 2/2 black Zombie creature
token with decayed.
•Phyrexia — At the beginning of each end step,
if a creature died this turn, incubate X where X
is the number of creatures that died this turn.