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.
Near Mint - $13.60
Lightly Played - $12.30
Played - $9.60
Heavily Played - $8.20
Damaged - $6.80
Near Mint Non-English - $13.60
Lightly Played Non-English - $12.30
Played Non-English - $9.60
Heavily Played Non-English - $8.20
Damaged Non-English - $6.80