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 - $36.00
Lightly Played - $28.80
Moderately Played - $25.20
Heavily Played - $21.60
Damaged - $18.00
Near Mint Spanish - $36.00
Lightly Played Spanish - $28.80
Moderately Played Spanish - $25.20
Heavily Played Spanish - $21.60
Damaged Spanish - $18.00