Station 7 introduces the boss Wayward Mud plus a heavy Tin Soldier wave. Two-half clear is required, and the optimal comp differs per half — bring a single-target burst comp for the Inbound boss and a wide AoE comp for the Outbound add wave.
Best opener for the Inbound boss (Wayward Mud) — concentrated burst window catches the cohesive phase.
Open with Haniel shield + Jiuyuan ATK buff, hold Chiz's mark, then dump Hathor's feather burst the instant Wayward Mud reforms.
Skip if you don't have Chiz — Nanally's follow-up burst is also good on the cohesive form.
Sakiri gather → Nanally Authority burst → swap to Jiuyuan for cleanup.
Outbound is two Tin Soldier squads + adds — pick the comp with the strongest sustained AoE.
Sakiri pulls the squad, Hotori freezes, Zero's follow-ups annihilate the frozen wave. Use Haniel only if HP drops.
Game-recommended secondary element for this station — Plasma + Anima cover Tin Soldier weakness.
Three-stack is enough — Outbound is short. Skip Haniel and bring a fourth DPS slot if you trust your dodges.
