Blade driver

The sword can change the hilt thing depending on which book is used.

Brave dragon. Left slot.
Story: There was once a Devine Beast possessing a great power that would destroy everything.

Transformation: draw sword! Brave Dragon! When the courageous dragon and Kaenken Rekka meet, the crimson sword will penetrate evil!

Dragonic knight
Left slot
Transformation: The knight appears. When you side, you have no grief and the flame is bright. Ride on dragon, fight! Dragonic Knight!

Primitive dragon
Left slot
Story: (story name) GET
Transformation: Rekka Battou! Baki! Boki! Bone! Gaki! Goki! Bone! Primitive Dragon!

Primitive elemental dragon
Left slot on primitive dragon
Story: and become an all saving divine beast by joining hands with ancient powers!

Transformation: ELEMENTAL DRAGON. GET! Tightening bonds!

Elemental dragon

Dragonic knight burst
(Possibly canon idk)

Unity form
Not canon)

King dragon. (Originally jaou dragon)
Story opening: master of the flame, the dragon cloud the world in burning flame unleashing its hidden power.

Story with driver: Jump out the book, open it and burst, burn away all that is evil. All evil will be turned to ash

King of Arthur
Right slot
Story: A brand of righteousness is struck down from a valiant king

Transformation: unknown