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

Baby Dragon + Thunder Dragon → Twin-headed Thunder Dragon

Baby Dragon + Kaminari Attack → Twin-headed Thunder Dragon

Winged Dragon #1 + Sanga of the Thunder → Twin-headed Thunder Dragon

Winged Dragon #1 + Thunder Dragon → Twin-headed Thunder Dragon

Winged Dragon #1 + Kaminari Attack → Twin-headed Thunder Dragon

Blackland Fire Dragon + Sanga of the Thunder → Twin-headed Thunder Dragon

Blackland Fire Dragon + Thunder Dragon → Twin-headed Thunder Dragon

Blackland Fire Dragon + Kaminari Attack → Twin-headed Thunder Dragon

Sword Arm of Dragon + Oscillo Hero #2 → Twin-headed Thunder Dragon

Sword Arm of Dragon + LaLa Li-oon → Twin-headed Thunder Dragon

Sword Arm of Dragon + Kaminarikozou → Twin-headed Thunder Dragon