Yamadron + Invader of the Throne → Flame Swordsman

Yamadron + Mystical Sheep #1 → Flame Cerebrus

Yamadron + Disk Magician → Metal Dragon

Yamadron + Gruesome Goo → Kairyu-shin

Yamadron + Hyosube → Kairyu-shin

Yamadron + Machine Attacker → Metal Dragon

Yamadron + Hibikime → Flame Swordsman

Yamadron + Dokurorider → Curse of Dragon

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

Seiyaryu + Thunder Dragon → Twin-headed Thunder Dragon

Seiyaryu + Kaminari Attack → Twin-headed Thunder Dragon

Seiyaryu + Tripwire Beast → Twin-headed Thunder Dragon