Slapstick Museum - Challenge Guide: With Love, From the Crime Lord (Archer of Shinjuku)

Requirements: The Main Quest line for the Event and Singularity: Solomon must be completed before this quest can be attempted.

• Chase down the criminal mastermind Archer of Shinjuku in this challenge quest! He has two HP bars (478k, 684k HP).
• Only Archer of Shinjuku must be defeated to clear the encounter.
• This battle can be done quickly or can drag on for a long time if you miss the brief 1-turn window to pile on damage when Archer of Shinjuku pops in from the back line (he will have Target Focus all enemies except himself, which can make it difficult). * Note that in this battle, using multiple Cards from the same Servant will still switch targets if a target is killed.
• A 3-turn Warning Letter is applied at battle start, which dictates one of four possible actions when the 3 turns expires.
  • Treasure - Decrease NP Gauge for a single enemy by 100%.
  • Star - Decrease Crit Stars by 50. Increase Crit Rate by 50% for all of the boss's allies (including backline) (3 turns).
  • Power - Remove buffs from the party. Apply Invincible to Archer of Shinjuku (1 turn).
  • Heart - 30% Chance to charm the party. Increase ATK for all of the boss's allies (including backline) (3 turns).
• Archer of Shinjuku swaps to the front line under two conditions:
  • 1) The 3-turns for the Warning Letter buff expires, in which one of the above skills occurs when he swaps in.
  • 2) Defeat an enemy with the "Traces of Spider Thread" trait, which every Servant enemy has. Archer of Shinjuku will swap in next turn. This method is preferred, since the Warning Letter gets cancelled and he will need to reapply another one. He also gets a Skill Seal effect if brought to the front line with this method.
• Archer of Shinjuku starts with perma-NP Seal. This will later get removed with his break effect.
• While on the field, all targets EXCEPT Archer of Shinjuku have perma-Taunt, making it impossible to target him with ST attacks unless all other enemies are already defeated.
• If at least 4 enemies remain, at the end of the turn, Archer of Shinjuku applies a new Warning Letter and swaps to the backline. This does not count as an action; he will still do his normal 3 actions before swapping out.
• On Break: Gains 1-turn Evade for self, and for all allies he gives +2 NP Gauge, and an ATK buff and DEF debuff (demerit). He also removes his NP Seal effect.

• AoE or ST Lancer damage dealers are all excellent options for this encounter, since the majority of enemies (including the Boss himself) will take double damage due to Class.
• Damage dealers with Trait Bonus damage against the boss also are very effective. A notable example is Yu Mei-ren (Lancer), a Welfare Servant who is both Lancer and has anti-Male bonus damage.
• Chen Gong is a particularly notable option for fast clears, due to the high number of low-HP mobs and his ability to cycle out Support Servants.
• Damage / NP Gauge Supports are effective as always, and in particular are notable to help stack buffs on the damage dealer to maximize damage dealt during the brief periods the boss appears.
• Ignore Invincible/Sure Hit Support or CEs help for dealing with the boss's break bar Evade effect. One of the other optional enemy Servants (Assassin of Shinjuku) also gains a 2-time Evade on entry.

• Note that these videos are not affiliated with GamePress, but showcase some lineups that are effective in clearing the final challenge. These can serve as a good reference for how to rotate skills during this quest or simply to have a look at the encounter before diving in.
  • Yu Mei-ren (Lancer) w/ Chen Gong (rip Castoria, Waver, Skadi x2) (5 turns)
  • Chen Gong 500% Overcharge (w/ 2x Castoria, Waver, Lan Ling, Nightingale Santa) (5 turns)
  • Lambda + 2x Castoria (w/ Arash, Tamamo, Nero Bride) (5 turns)
  • Enkidu Solo (w/ Lv1 Georgios & Chen Gong) (9 turns)
  • Double Van Gogh + Merlin stall strat (no backline) (34 turns)