(FGO) Mississippi Mythicizers 90+ 3T 6CE (No Oberon/Koyanskaya)

Do note that this isn't entirely RNG independent as Stheno has some inherent debuff resistance that can cause Circe's defense debuff to occasionally not proc. If that's giving you trouble you could swap out Circe's CE with Love's Curse to hopefully make the debuff proc more reliably