Lightning Coils

Artifact, 3 (3)
Whenever a nontoken creature you control is put into a graveyard from the battlefield, put a charge counter on Lightning Coils.

At the beginning of your upkeep, if Lightning Coils has five or more charge counters on it, remove all of them from it and put that many 3/1 red Elemental creature tokens with haste onto the battlefield. Exile them at the beginning of the next end step.¹
Illus. Brian Snõddy

Format Legality	Legal in Vintage, Legacy, Extended, MTGO Classic Banned in Standard
Printings (1/10)	Mirrodin (Rare)