A powerful and incredibly loyal man, Karim was dedicated to serve the Pharaoh, going as far as even sacrificing his life for him. A powerful Priest, he seemed to partner up with Seto and often fused their Ka's together. He fought alongside Atem and the others when Bakura waged war on Egypt, but ultimately died in the conflict; heavily wounded, he gives up the last of his life force to Shada in order to ensure he will continue to protect the Pharaoh.
Karim is a Priest serving Pharaoh Atem. When Thief King Bakura raided the palace, he attempted to fight off against him, but failed. Bakura later fled when Atem Summoned "Obelisk the Tormentor". He took part in the fight in Kul Elna against Bakura and his Diabound. He was severely weakened by Bakura. When Bakura separated the Priests from each other, he gave the last of his ba to Shada so he could fight off against the "Giant Axe Mummy".