They'd have to follow the same approval process as other items, they'd take up one of his 3 item slots, the can only mimic 1 move, and if it's replacing an entire limb then it's fair to say moves that use that limb probably don't work.
Run it by us, basically, those we'll do on a case by case basis
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Run it by us, basically, those we'll do on a case by case basis