I don't actually make many threads here, so I'll just get to the point.
I have a species called Viltroids. Basically, humanoids that wear A LOT of clothing. Often dark in colour, and can have one eye, to multiple eyes. Sometimes none at all. They also have horns.
These horns, what I have so far, store their 'magic.' Because of this, removal of the horns significantly weaken them, and even the removal is painful. The horns come in different shapes and sizes. The species can all use magic to an extent; though it really has no effect on anything without proper schooling first. Some Vilts may not even know what magic is depending where they're from.
They rarely use the magic in most cultures but for enhancement or medical purposes.
If anyone could offer some questions to help me flesh out the idea of this magic, you'd be welcomed! As well as ideas, too.