The Seiken Swordriver is the main transformation device for Kamen Rider Saber, Blades, and Espada depending on which Emblem is attached to the sword and sheathed into the Swordriver. The DX Seiken Swordriver includes the Rekka Emblem that creates the Kaenken Rekka for Kamen Rider Saber. This makes the sword's LEDs red with transformations that focus on Saber. Included is the DX Brave Dragon Wonder Ride Book, the primary transformation Ride Book for Kamen Rider Saber. Other Ride Books can be put in the Right, Mid, or Left shelves of the Swordriver to changes forms! Sheath and unsheath the blade to initiate a multitude of finishing attacks.

The Seiken Swordriver is a versatile transformation device that fits many users based on the Emblem attached to the sword. The Suiseiken Nagare Emblem turns the sword into a water elemental blade, wielded by Kamen Rider Blades. The Emblem will change the base LED of the sword to blue, and focus on transformation sounds for Blades. Along with the Emblem is the DX Lion Senki Wonder Rider Book, the main transformation Ride Book for Kamen Rider Blades. This Wonder Ride Book fits into the middle "Zoo" Slot of the Swordriver.