|First Appearance:||Ultraman Nexus Episode 12|
Mizorogi holds the Darkevolver in front of him and pulls it open. The central stone shines a purple light that covers his body. The transformation scene is an image of Mizorogi's face covered in purple light, the image cracks and Mephisto pops out with a purple light behind him. When he was fighting for good the light behind Mephisto was yellow.
- The Darkevolver is the first transformation item used by an evil Ultra.
- Perhaps fitting to its nature, it is also the first transformation item to be used as a weapon.
- It is also the first transformation item for an evil ultra made into a toy.
|Showa Items||Beta Capsule | Ultra Eye | Will Power | Ultra Rings | Ultra Badge | Leo Ring | Bright Stick | Beam Flasher|
|Heisei Items||Delta-Plasma Pendant | Will Power | Beta Capsule/Flash Prism | Estraller | Pikari Brush | Spark Lens | Nice Dreamer | Reflasher | Esplender | Agulater | Cosmo Pluck | Just Lancer | Evoltruster | Darkevolver | Max Spark | Mebius Brace | Knight Brace | Ultra Zero Bracelet | Ginga Spark | Dark Spark | Dark Dummy Spark | Gunpad | Ginga Light Spark | Livepad | Victory Lancer | Chibu Spark | X Devizer | Orb Ring | Orbcalibur | Geed Riser|
|Manga Only Items||Zoffy Bracelet | Jack Bracelet | Gorian Belt | Zaji Sword | Drew Bracelet | Flare Coin | Alphonne Pendant | Ars Ring | Mimicry System|