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Captain's Hook
{3}
Artifact -- Equipment
Equipped creature gets +2/+0, has menace, and is a Pirate in addition to its other creature types.
Whenever ~this~ becomes unattached from a permanent, destroy that permanent.
Equip {1}

Grafted Exoskeleton
{4}
Artifact -- Equipment
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 ~this~ becomes unattached from a permanent, sacrifice that permanent.
Equip {2}

Grafted Wargear
{3}
Artifact -- Equipment
Equipped creature gets +3/+2.
Whenever ~this~ becomes unattached from a permanent, sacrifice that permanent.
Equip {0} ({0}: Attach to target creature you control. Equip only as a sorcery.)

Stitcher's Graft
{1}
Artifact -- Equipment
Equipped creature gets +3/+3.
Whenever equipped creature attacks, it doesn't untap during its controller's next untap step.
Whenever ~this~ becomes unattached from a permanent, sacrifice that permanent.
Equip {2}