(Anabaseios Spoilers, don't click until you've cleared the entire normal tier and finished the quest) I thought it was just a fun little callback that they included a dialogue option for Ultima, the High Seraph. I always wondered whether or not the High Seraph and the spell Ultima were in any way connected, but from my understanding, the lore denied any connection. But... a YouTube comment pointed out to me that the xylophone(?) countermelody in One Amongst the Weary, the P9/P10 theme, is eerily similar to one used in Ultima, the High Seraph's theme.
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Kirby321 is 60% epicsauce, 40% epic failure Soo... how was your day?