I was nearly certain oni blades were in the lot of no longer possible in q8, however that seems to be incorrect. I had an oni blade drop from a chest in tannhaki temple mission normal mode and it was a canthan chest which can drop q8. No idea how the hell an oni blade came from the chest as it was only surrounded by affliced at the rit boss. My guess is internally in the game engine the rit boss is actually an oni or maybe there is an oni trigger spot there from the explorable that isn't fully removed?
Oni blades are dropped by both Oni and Shiroken. (Oni blades can "commonly" be found in Raisu Palace, which has no Oni.) I believe Tahnnakai Temple (mission) and Sunjiang District (mission and explorable) are the only places where max r8 Oni blades (and other Shiroken-related drops) can still be found. This should include Golden Phoenix Blades as well, as I have gotten one from Tahnnakai Temple before (not r8 tho). The chests have to be near Shiroken bosses, but that's basically always the case in Tahnnakai. I've done chest runs in the mission before just for the sake of trying to get some.
Unholy covered the details regarding Shiroken being the driver of Oni skins dropping in those locations.
I frequently run in Sunjiang District for this reason, don't have much luck, but did get this about a year or so ago that continues to give me hope, most people would merch it, I not only collect these in general, this remains proof of the possibility of a q8 max Oni Blade still dropping....










