|This article is about a/an device in Kamen Rider Ryuki.|
- ―Transformation announcement via Dark Visor-Zwei[src]
The Winged Summoning Sword Dark Visor (翼召剣ダークバイザーツバイ 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 Dark Visor to transform into the Winged Summoning Sword Dark Visor-Zwei (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 Dark Arrow (ダークアロー āku Arō) by using the Shoot Vent Advent Card. The Dark Visor-Zwei can be separated into the Dark Blade (ダークブレード Dāku Burēdo) and Dark Shield (ダークシールド Dāku Shīrudo) by using the Sword Vent Advent card (thought, 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 Dark Visor. The Survive card is instead inserted into a slot in the scabbard.