Unknown Necrozma Battle Remix I found on my pc - Pokémon Ultra Sun & Ultra Moon

I probably downloaded this from YouTube back in 2016. I had some other Pokémon-related remix files, but unlike this one, I managed to find all of them back on YouTube:    • Pokemon Platinum - Vs Giratina [Remix]      • Pokemon Sun and Moon - Vs Legendary [REMIX]      • Pokémon Ultra Sun & Ultra Moon - Ultra Bea...      • Pokemon Ultra Sun and Moon - Vs Ultra Necr...      • Pokemon X/Y - Vs Legendary [REMIX 2]   This one I just couldn't find. Please, let me know if you know who made this. (Unrelated, but I also had    • [Undertale] Power of "NEO" Dual Mix (Origi...   and a melancholic version of "Battle Against A True Hero" which I'm sure was made by NyxTheShield). Exported losslessly through ffmpeg with the following settings: @echo off ffmpeg -loop 1 -i "[IMAGE NAME]" -i "[AUDIO NAME]" ^ -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2:color=black" ^ -c:v ffv1 -pix_fmt yuv444p ^ -c:a copy ^ -shortest "[OUTPUT NAME]" pause ...Due to the image used, this video weighted 9.87 GB (10,607,439,446 bytes), and took almost an entire day to upload. I could've just exported the image in a lossy way this time, but... I was too lazy to do it. Yeah.