Rite of the Raging Storm

Creatures named Lightning Rager can't attack you or planeswalkers you control.
At the beginning of each player's upkeep,
that player puts a 5/1 red Elemental creature token named Lightning Rager onto the battlefield. It has trample, haste, and "At the beginning of the end step, sacrifice this creature.
19 naked Ragers at Ram Ranch.