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

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

Sanga of the Thunder + Sea King Dragon → Twin-headed Thunder Dragon

Sanga of the Thunder + Spike Seadra → Twin-headed Thunder Dragon

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

Sanga of the Thunder + Tyhone #2 → Twin-headed Thunder Dragon

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

Sanga of the Thunder + B. Dragon Jungle King → Twin-headed Thunder Dragon

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

Sanga of the Thunder + Serpent Night Dragon → Twin-headed Thunder Dragon

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

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