"Child's play, huh?" He shrugged. "Good, you might actually make a challenge."

He'd taken a few Thaumaturgy courses already, and found it extremely similar to the magic he had been learning as a Keyblade Master: particularly the part about tying your willpower to calling out the name of the spell. But even though her gold eyes and black hair put Riku in mind of a Heartless, she wasn't one, and as such, he had no intention of hurting her. So that put Fira and Blizzara right off the menu. There had to be something ...

An idea came to him, and he pointed his wand at the floor in front of her, aiming the tip at the pool as he swished it in a spiral.

"Gravira."

With any luck, it would pull her forward, off the stool, and into the water...