|This article is about a/an episode in Kamen Rider Blade.|
The Ruler's Seal (支配者の封印 Shihaisha no Fūin) is the forty-sixth episode of Kamen Rider Blade.
Though Keroberos was sealed, Tennoji reveals his true plan as he fuses with the sealed Undead to become all powerful. However, once Tennoji is defeated, the Giraffa Undead murders him and takes the Keroberos card, allowing the true Battle Fight to begin.
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- Kazuma Kenzaki (剣崎 一真 Kenzaki Kazuma): Takayuki Tsubaki (椿 隆之 Tsubaki Takayuki)
- Hajime Aikawa (相川 始 Aikawa Hajime): Ryōji Morimoto (森本 亮治 Morimoto Ryōji)
- Sakuya Tachibana (橘 朔也 Tachibana Sakuya): Kousei (Hironari) Amano (天野 浩成 Amano Kousei (Hironari))
- Mutsuki Kamijo (上城 睦月 Kamijō Mutsuki): Takahiro Hōjō (北条 隆博 Hōjō Takahiro)
- Shiori Hirose (広瀬 栞 Hirose Shiori): Yumi Egawa (江川 有未 Egawa Yumi)
- Kotarō Shirai (白井 虎太郎 Shirai Kotarō): Terunosuke Takezai (竹財 輝之助 Takezai Terunosuke)
- Kanai (金居 Kanai): Akira Kubodera (窪寺 昭 Kubodera Akira)
- Hiroshi Tennoji (天王路 博史 Ten'nōji Hiroshi): Kohji Moritsugu (森次 晃嗣 Moritsugu Kōji)
- As part of Super Hero Time, this episode aired alongside Tokusou Sentai Dekaranger episode 45, Episode. 45: Accidental Present.
- Viewership: 5.6%
- Closing Screen Rouse Card: Change Kerberos
- This is the only episode where all the Riders henshin at the same time.
Kamen Rider Blade Volume 12 features episodes 45-49: The New Card, The Ruler's Seal, Garren Eliminated, Prologue to Destruction and The Eternal Trump. It was released on DVD on July 21st 2004, with a total run time of 116 minutes.
Blu-ray Box 3 comes with 17 episodes.