Steven Universe
Possible names for male crystal gem OC: Obsidian, Onyx, Moonstone, Kunzite
Villain names: Bloodstone
Appearance: Long black hair, narrow dark black eyes, Gem is located left shoulder, wears a long black cape (black on the outside and blue with white shining stars on the inside) that acts as a shield to some extent (not as powerful as Steven's shield), pale skin, white knight-like shirt, overlapping black belts around his waist, black pants, and black shoes, Around the same height as Garnet.
Possible/Past relationships: He was Pearl's swords mentor, was Ruby and Sapphire's friend who suggested that they fuse to feel whole and he also helped them learn to fuse which kinda got them to having crushes on the Crystal Knight same with Pearl. He was kidnapped and experimented on at the Kindergarten where he first met Amethyst when she was forcibly created, she sees Obsidian as her brother, her only family.
