SOM: Viridian Revel, Enchantment 1GG Whenever an artifact is put into an opponent's graveyard from the battlefield, you may draw a card.

Viridian Revel

Whenever an artifact is put into an opponent's graveyard from the battlefield, you may draw a card.

1/1/2011 It doesn’t matter who controlled the artifact while it was on the battlefield, only whose graveyard it was put into.