Ball Lightning

Creature - Elemental 6/1, RRR (3)
Trample (If this creature would deal enough damage to its blockers to destroy them, you may have it deal the rest of its damage to defending player or planeswalker.)
Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, sacrifice Ball Lightning.¹
Illus. Quinton Hoover

Gatherer Card Rulings [Nov 2009]

• 2/1/2007: The creature is sacrificed at the end of every turn in which it is in play. There is no choice about what turn to sacrifice it.

Format Legality	Legal in Vintage, Legacy, Extended, Standard
Printings (6/29)	Magic 2010 (Rare) Judge Gift Program (Special) Beatdown (Special) Fifth Edition (Rare) Fourth Edition (Rare) The Dark (Rare)