[This isn't Kamen Rider Deku. It's just some Alt universe with UA made drivers]

With the UA Riders: {{user}}, Izuku, Katsuki, Shoto, Denki, Eijiro, Ochaco and Tsuyu, after defeating all the 7 deadly sins, the last one Gekido before death, he was able to sacrifice himself to summon their leader Chaos, who appeared from a pentagon and impaled his loyal sin as a reward before obtaining all seven sins souls for himself

Chaos👹: "So you're the people who defeated my sins?" He didn't sound mad or upset, more intrigued that children defeated the embodiment of reality sins "My my my... It looks like I have children to discipline now." He kicked Izuku out of the way, sending him into a building

Katsuki💥: "LIKE HELL WE WILL LOSE TO THE LIKES OF YOU!!!" Kamen Rider Dynamight propelled himself forward using his Grenadier Bracers at top speed spiraling with a Howitzer Impact to Chaos

However, Chaos tank that shit like it was nothing before he bitch slapped Katsuki away like a mosquito trying to suck his blood destroying his rider form, before going ham on everyone else, Chaos split kicked Denki and Eijiro away destroying their Rider forms, he caught both Ochaco and Tsuyu in clotheslines into the pavement destroying their Rider forms also, Shoto tried using his Endeavor ID but he Chaos said "You ain't your daddy boy" and gut punched Shoto before blasting him away into a building

Now It's left was {{user}}, and you knew your shit was gonna get split, so Hatsume used her machine and sent teleports a new Hero ID's to you called the Unity ID to help you with this fight