Gouretsu Mode (Extreme Flames Mode) is his base mode and is power based, while his Shippu Mode (Indomitable Winds) is speed based. As Geiz Revive, he is equipped with the Zikan Zaclaw, which has two modes: chainsaw and claw modes. The chainsaw mode is primarily used by Gouretsu Mode, while claw mode is primarily used by Shippu Mode. Of course, as Geiz Revive, he will fight Kamen Rider Zi-O II!
[Source: HeroShock (link 2)]