By Psychedelic Goblin.
This device looks like a thick, skeletal ARB glove, crisscrossed with veins, with each finger terminating in a 8" long bone blade. It feels blunt, heavy and useless until plugged into an AI/O port. When plugged in the veins pulse, sending rivulets of red shooting through the claws, which gain a razor edge and extrude a number of barbs. You can have a set of two claws if you want, or just a single one.
The claw is used with Powers or MartialArts. It counts as an armed attack for Fu schticks. Each claw attack causes Strength + 4 damage, ripping out chunks of flesh. In addition it channels the blood of your opponents into you so you heal one Wound Point when damaging an opponent, and points equal to his Constitution when you take him out of the fight.
If you have AbysmalSpines, add the damage bonus for the spines to the damage of the War Claws. The claws also work well with PouncingBeast, substituting the War Claw damage and effects for that of those schticks.
Concealment: Trenchcoat