Advent Cards

Advent Cards (アドベントカード) are the cards used by the 13 Riders in Kamen Rider Ryuki and Kamen Rider Dragon Knight.

These cards can be scanned via Visors. There are a wide array of different Advent Cards that are attributed to each Rider. Some are unique, but most Riders share a select few amongst each other.

These cards allows the Riders to summon their Contract/Advent Beasts as well as offensive and/or defensive weapons or use special abilities in their battles.

Advent Cards
Advent/Attack Vent= The Advent (アドベント) Card is a card any of the 13 Riders that have a Contract Monster/Advent Beast has access to. This is used to summon their respective Advent Monsters, and is what their Contract Card turns into once they Contract with a Monster. If this card is stolen or the Monster destroyed, a Rider's armor will revert to its blank form. It's renamed Attack Vent in Dragon Knight.

AttackRide Cards
When Kamen Rider Decade transforms into Ryuki, he does not use Ryuki's Advent Cards and the Drag Visor, instead using his own special AttackRide Cards which are based off of Ryuki's Advent Cards. As with all of Decade's Rider Cards, they are inserted into his Decadriver belt.
 * Strike Vent: As Ryuki, Decade summons the Drag Claw, a dragon-headed gauntlet that can send a burst of flames out of its mouth. Unlike the original Ryuki, it does not need Dragreder's assistance.
 * Guard Vent: As Ryuki, Decade summons the Drag Shield, dragon-like shield arrays on his arms. First used in Kamen Rider Battride War.
 * Advent: As Ryuki, Decade summons the Contract Monster Dragreder. First used in Kamen Rider × Super Sentai: Super Hero Taisen.

Wizard
The Advent Cards, along with the other Rider Powers, were stolen from Ryuki by Amadum in the world within the Magic Stone, who explained that they were already his due to the Riders' powers being from the same source as evil. However, the power was soon returned thanks to the appearance of Kamen Rider Gaim, with the return of the Advent Cards immediately transforming Ryuki into Survive Form.

Arms Weapon
The Drag Saber is the Arms Weapon wielded by either an Armored Rider or a New Generation Rider when they transform into Ryuki Arms, which is assumed by Kamen Rider Gaim in Kamen Rider Battle: Ganbarizing.