So, given Onyx has two gems (one on each middle knuckle), one can assume he’s a fusion. His fusion is of these two. Cassiterite on the left and Howlite on the right. Cassiterite is more manic and emotion driven, especially sensitive to rejection. Howlite is more grounded, prefers to take things head on. Has the ability to connect to and release old emotional pain and tends to negate Cass’s hyper energy. Cass has claws for a weapon, Howl has a bat or club.