Kamen Rider Build Episode 35

Evolto furthered his evolution by re-assimilating himself with his disassembled genetic makeup. That’s not all though. He’s almost got his hands on all of the Fullbottles and on the Pandora Box! Ryuga, who sacrificed himself to save Sento’s life, said that he was the only one who could save everyone. Sento swears to protect the Pandora Box no matter what, as all eyes rest on the last Fullbottle left that can change the course of the battle: Gentoku’s own Phoenix Fullbottle… (Source: kamenrider.fandom.com)