Yogic skills for a sort of paladin or clerical class...the flying yogi..maybe related to the air element causing levitation perhaps to avoid acid on the floor. Sufi whirling dervish causing area damage. Thinking of other elements: Walking on fire or hot coals damage free, walking on water or parting seas, maybe mana can be gained from chi in rocks or something. Magic mantras and chanting could be related. There could be spells to channel your ancestors to do heap big damage or gain universal energy.
I usually play a roguiesh type (certainly first playthrough if not most). Teleporting to the back of enemies to backstab is nice. I like some loot to be only available to rogues through lockpicking or pickpocketing and likewise with traps and disarming. I saw those funky suicide bomber characters and it would be fun if you could sneak up on them and sometimes rewire their bombs and sneak back and when they are running into combat maybe you can detonate them yourself when they are near a group of enemies.