LaLa Li-oon + Parrot Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Harpie's Pet Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Metal Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Sky Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Thunder Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Stone D. → Twin-headed Thunder Dragon

LaLa Li-oon + Kaiser Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Aqua Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Sea King Dragon → Twin-headed Thunder Dragon

LaLa Li-oon + Spike Seadra → Twin-headed Thunder Dragon

LaLa Li-oon + Skelgon → Twin-headed Thunder Dragon

LaLa Li-oon + Tyhone #2 → Twin-headed Thunder Dragon