"Kamen Rider Evol. I'll obtain the true power of the Pandora Box with this bottle and driver only I can use." ―Evolto unveiling the next phase of his plan with the Pandora Box.
Evolto was a member of the Blood Tribe who manipulated the power of Pandora Box, a powerful Blood Tribe weapon, to annihilate the civilization of Mars, and was the final main antagonist of Kamen Rider Build.
