Kamen Rider Build 17

Episode 17; Rider Wars Begin; ライダーウォーズ開戦
	Kamen Rider Build episode
Writer	Muto Shogo
Director	Nakazawa Shojiro
Action Director	Miyazaki Takeshi
Original air date	January 7, 2018
Viewership	3.3%
Forum Thread	Thread
Fan Rating	4.87 / 5
Episode chronology
← Previous; Episode 16; Weapon Hero	Next →; Episode 18; The Golden Soldier
	Episode List

Kamen Rider Build
< Ep 16	Rider Wars Begin ライダーウォーズ開戦	Ep 18 >
Aired with KyuuRanger Space.44

Important things that happened

Sawatari Kazumi / Kamen Rider Grease - Takeda Kouhei → 猿渡一海 / 仮面ライダーグリス - 武田航平
Akabane / Castle Hard Smash - 栄信 → 赤羽 / キャッスルハードスマッシュ - 栄信
Aobane / Stag Hard Smash - Serizawa Tateto → 青羽 / スタッグハードスマッシュ - 芹澤興人
Kibane / Owl Hard Smash - Yoshimura Takuya → 黄羽 / オウルハードスマッシュ - 吉村卓也

Takeda Kouhei might have been hired to play Grease as a way of sparking interest for the Kamen Rider Kiva Blu-ray sets that are going on sale later this month. Takeda played Otoya on Kiva.
- Takeda has played Riders at multiple times in his life. He was IXA in the TV run of Kiva. His last outing as a Rider was in Kamen Rider Decade as Dark Kiva.