Equipped creature gets +2/+2 and has infect. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever Grafted Exoskeleton becomes unattached from a permanent, sacrifice that permanent.
Equip 2
Non Foil / Near Mint - $8.98
Non Foil / Slightly Played - $8.08
Non Foil / Moderately Played - $7.18
Non Foil / Heavily Played - $5.39
Non Foil / Damaged - $4.49