Slot —; Price 90,000 gp; Weight 500 lbs.
An apparatus of the crab is a metallic magical vehicle. When unoccupied, it appears to be a large, sealed iron barrel big enough to hold two Medium creatures. Close examination, and a DC 20 Perception check, reveals a secret catch that opens a hatch at one end. Anyone who crawls inside finds 10 (unlabeled) levers and seating for two Medium or Small occupants. These levers allow those inside to activate and control the apparatus's movements and actions.
Operating a lever is a full-round action, and no lever may be operated more than once per round. However, since two characters can fit inside, the apparatus can move and attack in the same round. The device can function in water up to 900 feet deep. It holds enough air for a crew of two to survive 1d4+1 hours (twice as long for a single occupant).
When active, an apparatus of the crab has the following characteristics: