[EricH]

You're getting power from a device that is not the onboard 12V battery.

You're modifying the power pathways of the robot.

You could easily forget to plug the motor back in.

You're using special equipment on the field that isn't needed for a disability.

You have two speed controllers controlling one motor (victors are speed controllers).

At least three of those are legality issues.

Put some other form of claw-opener on board. Or, start with a slightly open claw if that'll fit in the box.