|This article is about a/an Giant Robo in Tensou Sentai Goseiger.|
|Sentai Show:||Tensou Sentai Goseiger|
|Number of Episode|
Full list of appearances
Tensou Combination Gosei Ground (天装合体ゴセイグランド, Tensō Gattai Gosei Gurando) is the combination of the Groundion and the Knight Brothers. Gosei Ground's attacks include the Sealeon Kick (シーレオンキック, Shīreon Kikku) and the Eraser Missiles (イレイザーミサイル, Ireizā Misairu). He can also launch the Knight Brother Headers as guided projectile weapons similar to Gosei Great's Header Attack. Gosei Ground's final attack is the GrounDrastic (グランドラスティック, Gurandorasutikku), firing a barrage of Eraser Missiles that hit the opponent before Gosei Ground himself rips through for the final blow.
Groundion Headder (グランディオンヘッダー, Gurandion Heddā): The Groundion Headder is Gosei Knight's true form. After combining with an off-road dump truck body, he becomes Groundion (グランディオン, Gurandion). As Groundion, he uses his mass for slamming attacks and can fire Eraser Missiles from his wheels. His finishing attack is the Groundion Laser (グランディオンレイザー, Gurandion Reizā) where he shoots a spiraling energy beam from his mouth while unleashing a torrent of missiles. He forms the main body of Gosei Ground and chest and feet of Ground Gosei Great, with Gosei Knight himself forming the head in both formations.
Knight Brothers (ナイトブラザー, Naito Burazā): The Knight Brothers are a duo of lion-based Gosei Machines composed of Sealeon (シーレオン, Shīreon), whose Headder combines with a cruise ship body, and Skyon (スカイオン, Sukaion), whose Headder combines with a blimp body. They respectively form Gosei Ground's right and left legs as well as Ground Gosei Great's respective arms.