Talk:Job Classes/@comment-198.30.250.195-20180209004555/@comment-36873764-20181029114013

There are warrior mages, like Warlock in 5th edition D&D which is a spellcaster that has proficiency with light armour.

Presumably if the player multiclassed with a heavy armour proficient class he might be able to use at least some magics in heavy armour.