Asahi Kinomiya

they have a third, more monstrous form much like the oni from traditional japanese depictions of hell but in modern society it's easier to stick to a slightly more humanly-appealing form during business hours 

i am incapable of drawing this form so just imagine it in your mind

theyre usually around 5'8" but in their fully monstrous form they can get up to around 7'. this is another reason they tend to stick to a more humanoid form.  

asahi is pretty strong (though for an oni they're a little on the weaker side). 

they have the ability to manifest and control onibi, which basically can be used to provide light and to track the location of someone, however this latter ability has several caveats. asahi must be currently in sight distance of the person they want to track in order for that particular ability to take effect. the lights themselves are obviously incredibly visible and (due to being low-level magic) tend to be able to be dispelled quite easily. the onibi can only last ten hours maximum, so they're not useful for long-term. basically, the onibi are useless for anything but keeping tabs on comrades and providing a free alternative to paying for electric bills. the flames can range anywhere from yellow to green to teal. they have no control over the color and have frankly no idea what causes it to change.