Ducklingator

Are there any people that do that? Or... do you need to self-teach without an overseer?

It's not really used for combat so you don't need to app it. Just need to find a way to produce it via rp then it should take that long.

Someone who has a void connection (read: can learn magic) would slowly accumulate smaller spells and cantrips over time as they observe and study their surroundings. It'd probably be the easiest magic to self-teach.