Valkasaurus - Power Rangers Dino Thunder

Valkasaurus Megazord
The Dino Stegazord can combine with the Thundersaurus Megazord with additions from the Mezodon Megazord to create the Valkasaurus Megazord. The Valkasaurus Megazord utilizes the Stegazord to surf down the Brachiozord's neck to unleash a forceful attack on its oponents.