Rite of the Raging Storm is a rare Enchantment card from Legendary Cube Prize Pack (PZ1), collector number 67.
Creatures named Lightning Rager can't attack you or planeswalkers you control. At the beginning of each player's upkeep, that player creates a 5/1 red Elemental creature token named Lightning Rager. It has trample, haste, and "At the beginning of the end step, sacrifice this token."