Phyrexian Devourer

Artifact Creature - Construct 1/1, 6 (6)
When Phyrexian Devourer's power is 7 or greater, sacrifice it.
Exile the top card of your library: Put X +1/+1 counters on Phyrexian Devourer, where X is the exiled card's converted mana cost. If Phyrexian Devourer's power is 7 or greater, sacrifice it.¹
Illus. Mark Tedin

Gatherer Card Rulings [Nov 2009]

• 10/1/2008: Phyrexian Devourer's power is checked as its activated ability resolves. Phyrexian Devourer's first ability also continually checks its power as a state trigger.
• 10/1/2008: Once a state trigger triggers, it won't trigger again as long as the ability is on the stack. If the ability is countered and the trigger condition is still true, it will immediately trigger again.
• 10/1/2008: If Phyrexian Devourer's first ability triggers, you'll have to sacrifice it when it resolves even if its power has been reduced to 6 or less by then.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/6)	Alliances (Rare)