Avalon took a few minutes to jot down all the spells that her classmates were naming. She had been trying to pay extra attention to potentially defensive spells lately, given everything that was going on at Hogwarts. Not that they would really be of any use, given the fact that she had to relinquish her wand every time she came back to the Room. But in case she ever needed to defend herself in the corridors, these were good to know.

"If someone was falling, you could use Immobulus to stop them. It'd be particularly helpful if you could freeze them with it right before they hit the ground. To absorb some of the shock." Not the best spell to use in that situation, but if you were in a pinch, it could be useful. "Arresto momentum would probably be a better choice, but if you needed a minute to think or prepare a better landing spot, a freezing charm could work."