Koumori Dragon + Yaranzo → Dragon Zombie

Koumori Dragon + Kanan the Swordmistress → Sword Arm of Dragon

Koumori Dragon + Stuffed Animal → Sword Arm of Dragon

Koumori Dragon + Megasonic Eye → Metal Dragon

Koumori Dragon + Three-legged Zombies → Dragon Zombie

Koumori Dragon + Flying Penguin → Spike Seadra

Koumori Dragon + Millennium Shield → Sword Arm of Dragon

Koumori Dragon + Labyrinth Wall → Stone D.

Koumori Dragon + Shadow Ghoul → Skelgon

Koumori Dragon + Wall Shadow → Sword Arm of Dragon

Koumori Dragon + Sanga of the Thunder → Twin-headed Thunder Dragon

Koumori Dragon + Pendulum Machine → Metal Dragon