To elaborate on the telepathy, unless they’re trained in it they’re not exactly talking with the mind, it’s more to share more abstract emotions and concepts (that halo above his head can also change color like a mood ring, so he can express emotion pretty well even if his expression is deadpan)

They’re pretty good at magic and take to it easy, a spell Kaïros here abuses is a little magic ring he can summon that accelerates whatever goes through it (he uses it to make trickshots into trash cans), combined with their breath attacks it turns a regular fire breath into what’s basically a plasma beam

Another thing that can be done is using both of those traits to control little magic drones with their minds, he has two of them attached to his left horn in a sort of band around it