Robofusion

Robofusion is a special ability that can allow the Tenkai Knights or the Corrupted to combine each other into giant war machines.

Prodojet
The Prodojet Tenkai Knights' first Robofusion that resembles a giant battleship, armed with pieces and colors from Bravenwolf and Tributon. It's special technique is the Phoenix Attack.

Air Lancer Jet
The Air Lancer Jet is the second Robofusion that the Tenkai Knights have achieved. It is armed with the color of Valorn and Lydendor. It's special technique is the Tenkai Thunder Cannon.

Xenoship
The Xenoship is Vilius's Robofusion with three of his soldiers.

Sickle Ship
The Sickle Ship is Granox & Slyger's Robofusion with a Corrupted soldier and a Sho. It's special technique is the Dark Raven Attack, it can also go under ground.

Braviton
Braviton is the fusion of both Bravenwolf and Tributon while they're in Titan Mode.

Trivia

 * The Xenoship and the Prodojet are both able to be made by connecting four different toys each. (Prodojet - Tributon, Kutor, Leinad, and Bravenwolf and Xenoship - Vilius, Rho, a Hos, and a Sho)