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Icon-kabuto
This article is about a/an transformation device/weapon in Kamen Rider Kabuto.

"Standby!"
―Activation announcement[src]

"Henshin!"
―Transformation announcement for Masked Form[src]

"Cast Off: Change Scorpion!"
―Transformation announcement for Rider Form[src]

"Rider Slash!"
―Finisher announcement[src]

The Sasword Yaiver (サソードヤイバー Sasōdo Yaibā) is Kamen Rider Sasword's henshin device, modeled after a mid-length Katana with a straight blade. By placing the Sasword Zecter onto the back of the blade's length, Tsurugi Kamishiro can transform into Kamen Rider Sasword. The Sasword Yaiver also acts as his personal weapon, enabling him to perform the Rider Slash attack, during which the blade secretes a potent poison.

When not in use, the Sasword Yaiver can be mounted onto Sasword's left leg.

Notes

  • The name of Yaiver is a combination name of Yaiba (written in kanji as 刃) and Saber (written in katakana as セーバー) with yaiba meaning blade and saber meaning sword.
    • However, the pronunciation of Yaiver is close to that of Yaiba.
  • The Sasword Yaiver is the first transformation gear to be a sword and for a long time also the only one until the Zaia Slashriser .
Icon-kabuto Kamen Rider Kabuto
Masked Rider System Users
Souji Tendou (alternate) - Arata Kagami - Daisuke Kazama - Tsurugi Kamishiro - Sou Yaguruma - Shun Kageyama - Souji Kusakabe
Movie-exclusive Riders: Issei Kurosaki - Hidenari Oda - Tetsuki Yamato
Gear: The Zecters - Rider Belt - Rider Brace - ZECT Kunaigun - Kabuto Kunaigun - Drake Glip - Zectmizer - Perfect Zecter - Gatack Double Calibur - Sasword Yaiver - Kabuto Extender - Gatack Extender - Machine Zectron - Kabutick Zecters
Allies
Hiyori Kusakabe - Jyuka Tendou - Yumiko Takemiya - Gon - Jiiya
Other allies: Takeshi Hongo
ZECT
Riku Kagami - Masato Mishima - Renge Takatori - Yuzuki Misaki - ZECTroopers
Worms
The Natives: Daigo Tachikawa - Shuichi Tadokoro - Negishi - Masato Mishima - Hiyori Kusakabe
Worms: Aracnea Worms (Aracnea Rubor - Aracnea Flavus - Aracnea Nigritia) - Lanpyris Worm - Bellcricetus Worm - Epilachna Worm - Pulex Worm - Verber Worms (Verber - Verber Rota) - Coleoptera Worms (Coleoptera Aeneus - Coleoptera Croceus - Coleoptera Argentum) - Musca Worm - Sectio Worms (Sectio - Sectio Acuere) - Formicaalubus Worms (Formicaalubus - Formicaalubus Oculus - Formicaalubus Maxilla) - Brachypelma Worms (Brachypelma Aurantium - Brachypelma Viridis) - Tarantes Worm Purpura - Geophilid Worms - Acarina Worms (Acarina - Acarina Amber) - Viella Worm - Sepultura Worm - Genomyas Worm - Culex Worm - Foliatus Worm - Cammarus Worm - Camponotus Worms (Camponotus Oculus - Camponotus Maxilla) - Cochlea Worm - Leptophyes Worm - Subst Worm
Executive Worms: Uca Worm - Cassis Worm
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