"So you think I'm some sort of magician?" he asked with a small self deprecating smirk. "Hmph. Well, I suppose it would be weird if someone else were doing it from afar and if you're aware of magic it seems more likely than floating rocks..."

Piccolo lifted a hand and turned his claws towards the rocks as if he were going to reach out and grab one. He didn't, of course, but the gesture was obvious. And after a moment the rocks lifted into the air. They kept in place, not moving for the moment, but just hovering.

"It's not really what I would call magic though. At least not in my world. Though some magic users can use spells to achieve the same outcome." Or just have telekinesis as well as magic, kind of like Piccolo himself actually. He just never considers his magic. He's not well trained in it.