Oculama

In a bid to maximize his profits, feared intergalactic bounty hunter, mercenary, and pirate Dogstar Drake stole illegal cloning tech in order to create a personal clone army of his greatest asset - himself.

The clone army was nearly completed, however the clones proved to be as violent, ruthless, and uncontrollable as their progenitor. The final batch of clones were the most severely degraded - the final one emerged improbably as identical twins, the most malformed and twisted of all, and they immediately went berserk, sparking a riot in Drake's cloning facility.

Seemingly enraged at the very existence of the other clones, the Twins systematically destroyed them all. In the battle they hijacked Drake's prototype neural-control nanotech mech suit, using it to great effect in their rampage. The Twins bickered and fought each other almost as much as they fought the other clones, however, and in their infighting they ripped the mech suit in half, destroying it but in the process grafting one arm of it on to one of theirs each, left and right.

Now they roam the infinite Shards as the Mayhem Twins, Orthodox and Southpaw, causing chaos wherever they appear. The only thing they hate more than each other is everyone and everything else in the entire Multiverse.

Due to the fused neural link between them, when they are fully separated they become weak and even catatonic if kept apart long enough. When they are together but bickering with each other (99% of the time) their arms can only form the crudest of implements. When they become mentally synched, they are at their most dangerous - their arms can form complex weapons and they move as one unit, one perfect combat mind split across two bodies, a nearly unstoppable killing machine. This is fortunately quite rare due to their constant fighting with each other.