Kell will have zero remorse to use all of his elemental magic, blood magic and Pretty Hallucinogenic Smoke Tentacles on Linhardt if he sees him go ballistic setting s**t on fire in Thorne outside of Castle walls. Just Because He Likes Him. Also not above of simply boinking him on the head the Good Old-Fashioned way. He fights extremely dirty, and is pretty sturdy so can field a lot what Linhardt can throw back at him.