User can fix any device they're given

Pros:
-user has thin tentacles they can use
-user has armour like skin
-user can control devices they fix
-user can make devices faster
-user can load their mind into devices

Cons:
-tendrals will disappear when user is weak
-user can protect themselves only is they're near power
-user can't control devices for long
-user's mind will fracture if uploaded too many times

Weakness: powercut
User can't defend themselves easily