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 - $9.800
Lightly Played - $7.900
Moderately Played - $6.900
Heavily Played - $5.900
Damaged - $4.900
Near Mint Spanish - $9.800
Lightly Played Spanish - $7.900
Moderately Played Spanish - $6.900
Heavily Played Spanish - $5.900
Damaged Spanish - $4.900