Kazumi Sawatari

Kazumi Sawatari (猿渡 一海) is Kamen Rider Grease (仮面ライダーグリス), who hails from Hokuto and is the leader of the Hokuto Three Crows.

Character History
Kamen Rider Grease stole the Phoenix and Robot Fullbottles from Sento Kiryu.

As Kamen Rider Grease, Kazumi led the Hokuto advance into Touto once war was declared by Prime Minister Yoshiko Tajimi. Penetrating the Skywall, Grease destroyed many Touto Guardians.

Ryuga Banjou encountered him as he searched for the Hokuto Three Crows. A Strong Smash Hazard appeared and began attacking bystanders, and as Ryuga put on the Build Driver, Kazumi destroyed the Smash in one punch using his hidden Helicopter Fullbottle before leaving. Later, after Ryuga and Sento had defeated the Hokuto Three Crows in Ryuga's first fight as Cross-Z Charge, Kazumi showed up to challenge them with his own Sclash Driver.

Personality
to be added

Powers and Abilities

 * Fullbottle Augmentation: By using a Fullbottle in his hand without transforming, Kazumi can gain abilities based on said Fullbottle's traits:
 * Helicopter: Allows Kazumi to perform fiery punches. First used to defeat a Strong Smash Hazard.

Weaknesses

 * to be added

Forms
Grease "Tsubureru! Nagareru! Afurederu! Robot In Grease! Buraa!"

- Transformation announcement

Rider Statistics Ability Perimeters: Grease's base form is accessed by inserting the Robot Sclashjelly into the Sclash Driver and pumping the lever.
 * Rider Height: 203.0 cm
 * Rider Weight: 118.3 kg
 * Punching Power: 31.3 tons
 * Kicking Power: 34.3 tons
 * Maximum Jump Height: 54.0 m
 * Maximum Running Speed: 100 m. per 2.5 sec.

Grease's personal weapon is the Twin Breaker.

Grease has two different finishers:
 * Sclash Driver finisher:
 * Scrap Finish (スクラップフィニッシュ):
 * Rider Punch (ライダーパンチ):
 * Rider Kick (ライダーキック):
 * Twin Breaker finishers:
 * Beam Mode (ビームモード):
 * Single Finish (シングルフィニッシュ):
 * Fullbottle:
 * Sclashjelly:
 * Twin Finish (ツインフィニッシュ):
 * Fullbottle + Sclashjelly:
 * 2 Fullbottles:
 * Attack Mode (アタックモード):
 * Single Break (シングルブレーク):
 * Fullbottle:
 * Sclashjelly:
 * Twin Break (ツインブレイク):
 * Fullbottle + Sclashjelly:
 * 2 Fullbottles:

Appearances: Build Episodes 16, 18, Kamen Rider Build: Birth! KumaTelevi!! VS Kamen Rider Grease!

Devices

 * Sclash Driver - Transformation device.
 * Sclashjellies - Transformation trinkets.
 * Helicopter Fullbottle

Weapons

 * Twin Breaker

Portrayal
Kazumi Sawatari is portrayed by Kouhei Takeda (武田 航平), who is more previously well known for his portrayal of Otoya Kurenai in Kamen Rider Kiva. As Kamen Rider Grease, his suit actor is Satoshi Fujita (藤田 慧).

Etymology
Following Sento and Ryuga, one of the kanji used to spell his name also represents an animal, Sa (猿), which poetically means "monkey". However, different from Build and Cross-Z, Grease's design motif has no obvious monkey elements. Though it could be a reference to the phrase "grease monkey".

Appearances

 * Icon-build.png Kamen Rider Build
 * Icon-exaid.png Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders
 * Episode 16: The Weaponry Hero
 * Episode 17: Rider Wars Start
 * Episode 18: The Golden Soldier