The Valkasaurus Megazord is formed when the Dragozord and Stegazord combine with the Thundersaurus Megazord, along with the helmet and axes from the Triceramax Megazord.
This combination is capable of charging towards enemies at great speed thanks to Stegazord, who carries the Zord on its back. The Megazord can hurl its axes at enemies, as well as charge its helmet horn with energy and propel it away.
The Valkasaurus can also slide down the back of the Brachozord for a powerful speed attach. The Megazord also becomes flight enabled in this mode.