Koumori Dragon + Toad Master → Spike Seadra

Koumori Dragon + Temple of Skulls → Dragon Zombie

Koumori Dragon + Monster Egg → Sword Arm of Dragon

Koumori Dragon + Akihiron → Kairyu-shin

Koumori Dragon + Rhaimundos of the Red Sword → Sword Arm of Dragon

Koumori Dragon + The Melting Red Shadow → Spike Seadra

Koumori Dragon + Dokuroizo the Grim Reaper → Dragon Zombie

Koumori Dragon + Fire Reaper → Dragon Zombie

Koumori Dragon + Hard Armor → Sword Arm of Dragon

Koumori Dragon + Firegrass → B. Dragon Jungle King

Koumori Dragon + Man Eater → B. Dragon Jungle King

Koumori Dragon + M-warrior #1 → Sword Arm of Dragon