Alright, I guess I'll do it...
Best case scenario would be Ishtar, Iskandar, Shuten Douji, or Mordred.
The summoning process kind of hiccuped, skipped over my 5*, displayed things out of order, and then showed me what I got afterward. I got Arturia (vanilla flavored), which is... fine. She's definitely in my "not interested" tier, but there are a lot of characters I would have liked less I guess. I don't have anything against her, but she's not very exciting.
I also got a Carmilla and a duplicate Victor of the Moon. Briefly got my hopes up that I might have gotten Shuten Douji when I saw that gold assassin card that turned out to be Carmilla, but no dice. Also from my bonus quartz I got a Suzuka Gozen, so that's neat I guess.