History
The Cyttora were a race of homunculi subservient to Cyttorak the Invulnerable who were obsessed with strength and durability. Once they sensed items that had been broken or misaligned, they instinctively began to repair them.[1]
After the Avengers Mansion was destroyed by Graviton,[2] Doctor Voodoo of the Avengers Unity Squad summoned the Cyttora to rebuild it.[1]
Some time later, an outbreak of Cyttora was spotted near Battery Park and American Eagle was sent to investigate.[3]