I just found it out, it was a CraftyCrafty 2016 Christmas banner. I have the exact same one buried in one of my shulker boxes

@HaloNest ell, not every banner has some lore behind it, maybe it's just a normal banner that some

random folk made

:P

@2Chill

Come to think of it, the banner looks like a crop circle :o I think we are onto something

Hahahaha