#lab rat

Maomao the lab rat

Caretaker has healing magic, but using it wipes them of their energy or life force. They are forced to grapple with either attempting to save their friend's life and endanger themselves, or live with the guilt of never even trying.

A deity defends their people, but collapses shortly after they win the battle

There was something off today about Villain from Hero's perspective. They weren't their usual chatty self, and their aim was terrible. Finally Villain falls to their knees mid-battle, exhausted. Hero inspects them to find a device sapping Villain's magical energy.

Living Weapon Character uses magic to fight. They've ran out of energy to keep going, but that's not going to stop them from trying.