Toby KNEW what those spells were. They were the stuff of NIGHTMARES. Sure, his memory was a little poor these days, but Tobias Tempus was not likely to forget the spells he dreaded someone using on him. Nobody, nobody apart from Soph, could know that Toby was extremely ticklish.

So the Hufflepuff tried hard not to show any signs of fear, and instead listened to the others, before raising his hand to point out the obvious. "They have different incantations, and probably different wand movements."

At Marigold's question, Tobias thought he might be able to answer her, so he looked in her general direction (hopefully) and spoke again. "I think all magic that's done with a wand is a spell, and sometimes it's without a wand. And then charms and hexes and jinxes and curses are all different kinds of spells."

Or at least, that was what Tobias had gathered from his reading. Worth a shot, right?