User blog comment:Rider of the Black Astolfo/I randomly found this WIXOSS YGOPRO/@comment-29727671-20190922175318

Seems like YGOPRO with modified rules, but it's still missing tons of cards. AFAIK YGO Percy already supports adding mods with special rules that affect the whole game and there were other TCGs made that could be played, so I assume this might be based on a similar principle. Still, it would be quite the hard work patching the YGO rules to fit wixoss that way.

The interface is still very YGO-like, I assume the field would be the same, but looking at the page, there doesn't seem to be any gameplay screenshots, so it might just be a deck builder/card manager with no gameplay.

I can't seem to find a download button though.