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.
Near Mint - $9.80
Lightly Played - $7.90
Moderately Played - $6.90
Heavily Played - $5.90
Damaged - $4.90
Near Mint Spanish - $9.80
Lightly Played Spanish - $7.90
Moderately Played Spanish - $6.90
Heavily Played Spanish - $5.90
Damaged Spanish - $4.90