I really don't see any benefit to having 2 armor sets in one dungeon. I definitely value the TotN armor more than the Daito armor so I gotta vote them to get axed
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They could add in the Floating/ Focusing/Annihilating Flawless armor if you do it Solo Flawless as a reward too. Might as well bring back the TotN Flawless Prestige Ornaments