Move Creation Workshop

[Takanomiya Hijiri]

Removing Injuries (capitalized for a reason) by internalizing them would require a Super Move

Or Shapeshifting. There's no reason why it would have to be a Super if he had SS, since that's something which would easily be covered by its effect.

otherwise you'll need to specify that you're simply replacing external Injuries with internal ones (ex: broken leg becomes punctured lung).

Why would that be enough to make it not worth a Super Move (or Shapeshifting)? If he had Survival then punctured lungs wouldn't matter in the slightest...