FGO Spartacus Solo Summer 3 Challenge Quest (8 Servant Boss Rush)

Very straight forward. T1-4 is standard fare. The meat of the run is to avoid triggering guts from T5-7. Upon T8 the only thing left to look out for is CasNero’s Seven Crowns.

As for the reason behind order of breaking wave 2’s bar 1 (Salter-Raikou-Nitocris):

Malter has high chance to cast skills. Raikou's first move has a chance to be Eternal Arms Mastery or Mystic Slayer as Berserker, while upon break her first is always her Charisma. Nitocris’s first move as Caster is always battery skill, then upon break taunt skill.

So break Salter first and reset until both she and Raikou use skills (Nito skill guaranteed). Then break Raikou and reset till only Nitocris attack (Nito hits the lightest, Raikou skill guaranteed). Finally, on T7 break Nito and pray very hard for the existence of a timeline where neither Maid nor Raikou attacks (have exhausted all resets and not reach it before).

If Spartacus fails to survive T7 without triggering guts, then use Invincibility on T7, afterwards on T8 let Raikou trigger Spartacus’ guts to stop Nitocris’ NP avoiding its 20% defence debuff. Heal back 7500 HP with skill 1’s active on T9 (free turn), then try to survive on T10 without triggering guts: my Void Shiki solo’s clutch moment can be considered as an equivalent of this scenario for Spartacus. T11 triggers the second guts regardless of what happens on T7.
Fate/Grand Order Servant Summer Festival 2020!
Challenge Quest [High Difficulty] Eighth Day, Grand Finale! Spartacus Solo

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