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 - $31.700
Lightly Played - $25.300
Moderately Played - $22.200
Heavily Played - $19.000
Damaged - $15.900
Near Mint Spanish - $31.700
Lightly Played Spanish - $25.300
Moderately Played Spanish - $22.200
Heavily Played Spanish - $19.000
Damaged Spanish - $15.900