There were many charms Eino wanted to learn, but that wasn't the Professor's question. Sighing, he looked around the room for any clues that might indicate what spell they would be learning. Professor Descoteaux was surprisingly interested in room decoration charms. After no clues were found, Eino raised his hand. "Perhaps an ambiance charm or a thermal charm?" He heard that the Ministry used many of those charms but they were rather difficult to cast and even more difficult to control once cast. Or maybe they would learn something that would imitate the Hogwarts sky ceiling.