The first remix he uploaded publicly on Youtube was "(Sparta Remix For All) - Rarity vs Castle". It's not sure if it's his first remix. Everyone was surprised from that remix for the visuals and the audio. However, that remix was quite suspicious for the people who didn't know him, but he's not an alt or a new channel of someone that got his old channel terminated or something. He's been with the community since forever without making content until that day he released that Sparta Remix.
He made parts for some collabs and other videos after his first video, but not frequently. He uploaded 9 videos in total (09/18/2015), because he's very busy with his private life stuff (College ect).