Gosei Knight

Gosei Knight (ゴセイナイト, Gosei Naito?) is a mysterious warrior of which the Gosei World has no record of.

Biography
Ten-thousand years ago, he was originally the Groundion Headder (グランディオンヘッダー, Gurandion Heddā?) and battled the Yuumajuu until he got separated from his Gosei Angel allies. Ending up in a glacier, Groudion made a pact with the planet itself as it gives him the means to assume his human-like form to fight the revived Yuumajuu and cleanse the Earth of any threat to it. His motivations however have put him at odds with the current Goseigers, as he doesn't care for the people who inhabit the Earth. However, the more time he spends on Earth fighting alongside the Goseigers, the more he begins to realize that their missions are one in the same.

Unlike the Goseigers, Gosei Knight uses the mysterious Knightick Power (ナイティックパワー, Naitikku Pawā?), enabling him to use the abilities of the Skick, Landick, and Seaick Tribes. When fighting, he refers to himself as "The Earth purifying knight of destiny! Gosei Knight" (地球を浄める宿命の騎士！ゴセイナイト, Hoshi o kiyomeru shukumei no kishi! Gosei Naito?). Before performing his finishing attack, he calls upon the Conviction of Knightick Power (断罪のナイティックパワー, Danzai no Naitikku Pawā?). GoseiKnight debuted in Epic 17.

However, sometime after defeating Bajira, the Earth was invaded by the Space Empire Zangyack. GoseiKnight fought alongside not only his own team, but every single Sentai ranger in existance, in the Great Legend War to defend the Earth. After fighting against hundreds of Gormin and their Zgormin commanders. AkaRanger noticed the fleet moving towards them, he gathered all the Rangers together and gave them the order to sacrifice their powers to wipe out the first invasion's armada.

Arsenal
Vulcan Headder (バァルカンヘッダー) GoseiKnight's personal Headder, which resembles a gatling gun. It combines with the Leon Laser and the Leon Cellular to add the aforementioned gatling-gun properties to the weapon.
 * Knight Power Releasement Vessel Leon Cellular (ナイトパワー解放器レオンセルラー): The Leon Cellular is Gosei Knight's device that allows him to perform Tensou Techniques via a three-digit code on his cards.
 * Leon Laser (レオンレイザー): The Leon Laser is Gosei Knight's personal weapon. It has both a gun mode and a sword mode called the Leon Laser Sword (レオンレイザーソード), able to perform the Knight Metallic (ナイトメタリック) attack. LeonLaser_Sword.jpg
 * Dynamic Leon Laser (ダイナミックレオンレイザー): Combination of the Leon Laser, the Leon Celluar, and the Vulcan Headder. Gosei Knight performs the Knight Dynamic (ナイトダイナミック) finishing attack. Gosei Knight says "Conviction of Knightick Power!" (断罪のナイティックパワー！) and "Punish!" in performing the finishing attack.

Mecha

 * Groundion Headder (グランディオンヘッダー): GoseiKnight's true form, he accesses this form through the Groudion Change Card.
 * Groundion (グランディオン): A lion/dump truck combination. He can preform the Groudion Laser, shooting an energy beam while launching a torrent of missiles.
 * Knight Brothers (ナイトブラザー): A duo of Gosei Machines composed of the lion/blimp, Skyon and the lion/cruise liner, Sealeon.
 * Gosei Ground (ゴセイグランド): GoseiKnight's mecha, formed from Groundion and the Knight Brothers (Skyon and Sealeon).

Trivia

 * GoseiKnight is the second Sentai Ranger with a red visor after AbareKiller.
 * GoseiKnight is smiliar to Seijuu Sentai Gingaman's Bull Black.