Until end of turn, whenever a nonblack creature enters the battlefield, if an opponent has 10 or less life, target Spirit gets -4/-2 until end of turn.
Zombie Allure {1B} |Instant| Until end of turn, whenever a nonblack creature enters the battlefield, if an opponent has 10 or less life, target Spirit gets -4/-2 until end of turn. / Demons you control get +0/+2 until end of combat.