He used the Millennium Scales to fuse his and Seto's monsters together during the Priests' and Bakura's fight at Kul Elna. Bakura killed Kalim with Bone Snapper. However, his last act was melting a part of Diabound's ghost shield with the fused monster he created, giving the others a chance to defeat Diabound. His corpse was reduced to sand by Dark Bakura.
Kalim has used the following monster ka:
- Desert Trapdoor Spider
- Curse of Dragon
- Duos Dragon (fusion of Curse of Dragon and Seto's Duos)