Alright, you guys have seen Kratehk, and he had a full description, bio, and everything, but I forgot one for Kepora...so here's some quick info:
1. Kepora stands about 8 feet tall; noticeably shorter than his four-armed, 10 foot tall companion.
2. Most of kepora's body is actually artificial: everything from the waist down, the front of his torso and over half of his viscera (insides), just about his entire left arms, halfway down his forearm down, the front and right parts of his jaws, his eyes, and even the back of his head-including over half of his brain-ALL fake.
3. Kepora used to live on a land called Tetra Nui, where he had taken over as the Warlord and General of the Armies (Which he formed).
4. He is an EXTREMELY talented tactician; though he's a very skilled fighter alone, give him an army and he'll be unstoppable.
5. Though he mostly relies on his intelligence, Speed, and Strength to outdo his foes, he has a few other abilities: first off, there's his powerful claws; second, his large switchblades; and finally, he can actually transmute material-basically alchemy.
Most of his past is shrouded in pure speculation; but one thing agreed on is that the only one to ever know will be Kepora himself.