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

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

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

Advent
All 13 Riders that are Contracted to a Mirror Monster have access to this card. This is used to summon their respective Advent Monsters (known as Attack Vent in DK)

Sword Vent
These cards allows 6 of the 13 Riders to summon a sword-like weapon. Interestingly, the weapon summonned resembles certain body parts of their Contract Beasts while Ryuki Survive's Sword Vent is a blade that comes from the top of his Drag Visor Zwei and Knight Survive's Sword Vent comes from his Knight Visor Zwei.

Strike Vent
These cards allows 7 of the 13 Riders to summon a gauntlet-like weapon. Like the sword and shield vents, the gauntlet summonned resembles certain body parts of their Contract Beasts. Some of them could even launch projectiles.

Guard Vent
These cards allows 7 of the 13 Riders to summon a shield. Like the sword vents, the shield summonned resembles certain body parts of their Contract Beasts.

Shoot Vent
These cards allow 3 of the 13 Riders to summon firearm-like weapon. The summoned weapons for Zolda resemble parts of Magnugiga's body except for Ryuki's Survive Mode's Shoot Vent which let's him shoot fireballs from his Drag Visor Zwei and Knight's Shoot Vent which let's him fire arrows from his Knight Visor Zwei.

Nasty Vent
This card allows Knight to summon Darkwing to use a supersonic screech attack.

Trick Vent
This card allows Knight in both forms and Ryuki in Survive form to make 4 illusion copies of themselves.

Blust (Blast) Vent
This card allows Knight Survive to summon Darkraider to fire a pair of tornadoes from the turbines on his wings.

Swing Vent
This card allows Raia to summon a whip that resembles Evildiver's tail.

Copy Vent
This card allows Raia to create a copy of any weapon like the one his opponent is using, or by Verde to copy his opponents appearence.

Unite Vent
This card allows Kamen Rider Ouja to combine Venosnaker, Metalgelas, and Evildiver into Genosider.

Freeze Vent
This card allows Tiger to freeze another Rider or a Rider's Advent Monster.

Spin Vent
This cards allows Imperer to summon a spear-like weapon that resembles Gigazelle's horns.

Hold Vent
This card allows Verde to summon a bolas-like weapon that resembles Biogreeza's eyes.

Clear Vent
This card allows Verde to turn invisible.

Time Vent
This card allows Odin to send himself or someone else back in time.

Strange Vent
This card allows any of the 13 Riders to use 1 random Advent card of any kind.

Confine Vent
This card allows any of the 13 Riders to nullify the effect of an Advent Card of a Rider for one round.

Return Vent
This card is used to reactivate the effect of a negated card. Originally a card that resists Confine Vent. This card didn't appear in the series.

Steal Vent
This card allows any of the 13 Riders to steal another Rider's weapon.

Seal and Contract Cards
These cards are used by each of the Riders when they are given a choice: to either seal a Beast, or make a contract with it.

Survive
This card allows any of the 13 Riders to assume their powered up Survive forms. The only Riders to use these are :
 * Survive Rekka: Ryuki, Tiger (S.I.C.) and Ryuga (S.I.C.)
 * Survive Shippu: Raia (never used), Knight, Ouja (S.I.C.)
 * Survive Mugen: Odin (S.I.C.)

Accele Vent
This card allows Alternative and Alternative Zero to move at high speeds.

Wheel Vent
This card allows Alternative and Alternative Zero to transform Psycorogue into it's motorcycle form, Psycoroader.

Final Vent
This card allows any of the 13 Riders to execute a finishing attack with their Advent Monster that was unique to each of them.

Ryuki Attack Ride 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 Ryuki Attack Ride 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, a dragon-like shield arrays on his arms. First used in Kamen Rider Battride War.
 * Advent (アドベント): As Ryuki, Decade summons the Contract Beast Dragreder. First used in Kamen Rider × Super Sentai: Super Hero Taisen.

Trivia

 * These are the first Collectible Devices, as well as the first of three collectibles to be in the form of cards (followed by Rouze Cards and Rider Cards).