Velma Von Venkman has a unique spell trainer screen that gives a brief description of each of her trainable spells. I think this would be good to incorporate for all spell trainers and would ease players who don't do Diego's tutorial quests into understanding the other varying spell mechanics. This would be especially useful on the Celestia trainers when the astral schools are introduced to players. It could also, perhaps, have some flavor text describing the spell that might intrigue people to start a new wizard of that type too. It'd be a welcome quality of life update.