It's from GGXXAC apparently. But thank you, man. Just knowing the franchise that originates the stage helps.
That's Testament's stage from GGX2, but I'm afraid I don't remember who made it.
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I know himarzuke made a version of it but it's not the same (based on GGXR IIRC). I would think that's Type Wild's conversion, which is the GGXXAC version.That was very detailed. I never played a Guilty Gear game, so it helped a lot. Thank you very much. I could find the stage. It's Type Wild's. It also comes with BGM. I downloaded other stages too. Man, the soundtrack is awesome!
As a bonus, there's day versions by Neat Unsou (GGX version) and curiously, YagamiRox's version which is based on GGX Advance.
Using this stage with ADD004 is even better! Oh, my...
So if anyone else is interested:
Its name is "Grove", you can download it here, in the GuiltyGearXX ACORE category.
Day version by Neat Unsou, here.
The dream is nothing yet drive us to the end.