[When this all first started, Mickey had been happy to fight off the monsters as a way of feeling useful. But with the world coming apart and the monsters increasing in number, the joy is gone and replaced with worry.
You can find him uselessly trying a magic spell on the trees - Cure works only on people, so he learns - or him sitting at the weakened behavior, trying to catch his breathe after fighting off the latest round of monsters. Boy is he exhausted.]
... That's what I get for likin' the fight, huh...