|This article is about a/an changer in Tensou Sentai Goseiger.|
The Knight Power Invocation Device Leon Cellular (ナイトパワー解放器レオンセルラー Naito Pawā Kaihōki Reon Serurā) is Gosei Knight's transformation device that first appeared in Epic 17 of Tensou Sentai Goseiger. This transformation device has a number pad so Gosei Knight can perform various Tensou Techniques by pressing a 3-digit number combination, then press the red "Enter" button, call out "Tensou!" and close up the Leon Cellular. Just like the Tensouder, it is voice activated. Here are the cards that can be inserted and the 3-digit number code in order to activate.
At the climax of the Legend War, the Leon Cellular as a transformation device was made redundant when Gosei Knight sacrificed his powers with the rest of the first 34 Super Sentai to destroy the invasion force of the Space Empire Zangyack. Resurfacing as a Ranger Key, the power of Gosei Knight would be used by the Gokaigers to assume the form via the Gokai Change. Ultimately, the Gokaigers returned their borrowed powers to their rightful owners after overthrowing Zangyack.
- Gosei Knight Change Card: Transforms Groundion into Gosei Knight - 535
- Vulcan Headder Card: Summons the Vulcan Headder - 848
- Knight Dynamic Card: Placed in Dynamic Leon Laser to execute Knight Dynamic Finisher - 474
- Groundion Headder Change Card: Transforms Gosei Knight into Groundion - 717
- Knight Brother Headder Card: Summons the Knight Brothers - 262
- GoseiGround Combine Card: Combines Groundion and the Knight Brothers into Gosei Ground - 353
- Ground Gosei Great Combine Card: Combines Gosei Great and Gosei Ground into Ground Gosei Great - 525
- Victory Charge Card: Allows Gosei Ground or Ground Gosei Great to unleash it's finishing attack - 919
- Explosion Cards: Elemental attack cards - 202
- Rockrush: Summons giant rocks.
- Twistornado: Summons a large transparent whirlwind.
- Spark Cards: Thunder element cards - 303
- Comprethunder: Summons a storm cloud that launches lightning bolts.
- Splash Cards: Elemental cards - 404
- Presshower: Summons several jets of water.
- Istop: Blasts out a cone of frost that freezes anything in its path.
- Freezedrive: Blasts out a cone of frost with a whirlwind that freezedries anything in its path.
- Focus Cards: Perception-affecting cards - 505
- Trianglobal: Merges the energies of the Skick, Landick, and Seaick Powers. It's effects can be duplicated through the simultaneous use of the Twistornado, Sparquake, and Presshower cards.
- Outbreak Cards: Enhancement cards - 606
- Roplant: Produces an ivy from the ground that ensnares a target.
- Expand Cards: Spell cards - 707
- Defenstorm: Summons a wall of wind.
- Defenstream: Summons a wall of water.
The cellular phone has a slot to insert the cards and cause power ups to the Gosei Knight. The transformation call is "Change Card, Tensou!" and the device will say Change Gosei Knight when transforming into Gosei Knight and Change Groundion when transforming into Groundion Headder/Groundion.