Koumori Dragon + Queen of Autumn Leaves → B. Dragon Jungle King

Koumori Dragon + Invader of the Throne → Sword Arm of Dragon

Koumori Dragon + Disk Magician → Metal Dragon

Koumori Dragon + Gruesome Goo → Spike Seadra

Koumori Dragon + Hyosube → Spike Seadra

Koumori Dragon + Machine Attacker → Metal Dragon

Koumori Dragon + Hibikime → Sword Arm of Dragon

Koumori Dragon + Dokurorider → Curse of Dragon

Two-headed King Rex + Ancient Tool → Cyber Saurus

Two-headed King Rex + Ground Attacker Bugroth → Cyber Saurus

Two-headed King Rex + Holograh → Cyber Saurus

Two-headed King Rex + Gatekeeper → Cyber Saurus