As the purpose of the assault team shifted from scouting to searching the mutated birds that attacked Rex earlier—Rex learned more about the Order Skill. Each purchase he made, would give him an hour of time in the designated persona form.
He could stay within the persona form for an hour before reverting back to normal again.
Moreover, if he deactivated the persona form before the time was up, the time would be lost.
Because of that, he couldn't activate the Blood Moon Persona form.
Fighting the Werepanther didn't take an hour, it was about fifteen to twenty minutes at max, but since he deactivated it manually—before the time was up then he needed to purchase it again before he could use that form.
It's not a bummer though as he has no use of the Blood Moon Persona form after the fight.
He would only be a problem for the others if he stayed in that form.
