User blog comment:El Asesino/Did they mess up??/@comment-3217145-20130424125841

Enchanting is pure magic, hence why it's part of the Mage. In older games it wasn't even a skill, it was just a thing sitting in Mage-related places (like the Arcane University). Alchemy used to be a Mage thing too, and was tied to Intelligence, but fully half of it (poisons) has Thief written all over it. That's also why they stuck it right on the border between Thief and Mage. Makes sense in a way to make it a Thief thing, since Mages already have healing spells.