Oh, were they meant to be casting the charm on their puff-puffs already? Mo had been sure they were meant to bond FIRST and cast later, but since he spotted most of his classmates already into the magical bonding...

Yeah. "So look, here's the thing." Mo crouched painfully and made a face at the puffskein. "I'm going to cast a spell on you. I think you'll like it, and it'll be good for you, but if you don't, can you like... lick my ear or something? I'll know what you mean." And the spell... "Animalis Fidelis."

He waited a moment, wondering if he'd be able to feel the puffskein suddenly develop an affinity for him. It didn't work that way, although the creature did stop rolling onto its back and staring up at him. That was a good start.