2When Apex Altisaur enters, its first ability triggers.
3Holding priority, cast Akroma's Will by paying its mana cost, giving creatures you control indestructible until end of turn.
4Resolve the Apex Altisaur trigger, causing it to fight a creature you don't control.
5If the opposing creature dealt damage to Apex Altisaur, Apex Altisaur's second ability and Wrathful Raptors trigger.
6Resolve the Wrathful Raptors trigger, dealing damage to any opponent.
7Resolve the Apex Altisaur trigger, causing it to fight a creature you don't control.
8Repeat from step 4 until your opponents control no creatures. If they happen to control an indestructible creature with power above 0, this loop can be done infinitely.