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 - $36.400
Lightly Played - $29.100
Moderately Played - $25.500
Heavily Played - $21.900
Damaged - $18.200
Near Mint Spanish - $36.400
Lightly Played Spanish - $29.100
Moderately Played Spanish - $25.500
Heavily Played Spanish - $21.900
Damaged Spanish - $18.200