|This article is about a/an device in Kamen Rider Ryuki.|
- ―Transformation announcement via Darkvisorzwei[src]
The Winged Summoning Sword Darkvisor (翼召剣 ダークバイザー Yokushōtō Dāku Baizā) is a sword-like Visor with a rapier-like handguard fashioned into a facsimile to a perched Darkwing marked with Knight's personal emblem, and used by Kamen Rider Knight. It serves as his primary weapon when not using his Advent Cards. To insert Advent Cards, Knight pulls on the "feet" at the bottom of the Visor, causing the "wings" to open and reveal a place for the card to be set.
Using the Survive Shippu Advent Card causes the Darkvisor to transform into the Winged Summoning Sword Darkvisorzwei (翼召剣 ダークバイザーツバイ Dāku Baizā Tsubai) an arm-mounted scabbard/shield resembling Darkraider. It can also convert to a bowgun mode called the Darkarrow (ダークアロー āku Arō) by using the Shoot Vent Advent Card. The Darkvisorzwei can be separated into the Darkblade (ダークブレード Dāku Burēdo) and Darkshield (ダークシールド Dāku Shīrudo) by using the Sword Vent Advent card (though, after the card's first use, Knight is often seen simply pulling the Dark Blade out of its scabbard without the use of an Advent Card). To insert Advent Cards, two panels on the hilt of the Dark Blade swing open to reveal a place for the card, similar to the normal Darkvisor. The Survive card is instead inserted into a slot in the scabbard.