Here's his bio.
GENDER: None, but speaks in a male voice.
OCCUPATION: No one knows for sure.
TITLE(s): Makuta Blackwing, The Mask-Jacker, Demon of the shadows, Darkness.
KANOHI: All of them.
WEAPONS: Claws and jaws. Nuff' said.
MOC STATUS: Changes aperance often to avoid being recognised.
STORY: Blackwing stole the masks of toa and matoran and gave them to Makuta Teridax for the brotherhood. But when Teridax betrayed Blackwing, he was banished to Mata Nui but there he wasn't welcome either and vanished into the dust clowds surrounding the 3 planets. Now he's returned for revenge with a new team of Mask-Jackers... and they mean business.