Absolutely its the only way we can stop her from whamming BS. Hell send nevermores too should be able to distract her atleast.
Also unless where willing to have MW kill herself a shiled on CHimera if WH or SK tries to get rid of it.
Very well.
[X] Plan: Gonna Be A Long Fight (Black Swan Is Unbreakable)
-[X] Menagerie Witch should stay near Yara, keeping her normal clones near her. She should create a HIT Chimera to go harass Seraph.
-[X] Doctor Silver should put one shield on Belle Sabreuse, another on Handyman, and keep the last shield in reserve for protecting Yara from other attempts at kidnapping her; he should also put the Hustle on Menagerie Witch's Chimera. He should actively focus on trying to find whoever tried to kidnap Yara.
-[X] Chatelet should help Belle Sabreuse take out Brass Shield - he was not pushed away by her earlier barrier so it would be best to focus her barriers on increasing her or Belle Sabreuse's mobility if possible.
-[X] Lady Leizi and Handyman should focus on taking down Ete and Joules ASAP so they can then help with other enemies. They should directly psychologically taunt them in the process.
-[X] Valiant Gold should remain in Module Scissors to continue to attack Stockpile above all else, because she is the only one who can keep up with his teleportation. If possible, she should try to move him away from the house and everyone else - perhaps in the direction of the nearby wooded area that was noted to have tripwires and C4.
-[X] Black Swan should attempt to 3v1 the Horae Guard, prioritizing Seraph. She should keep an eye out for whether she can absorb Sunlight Knight's energies or not.
Edit: I'm also voting for -
[X] Plan: Surveillance and Protection
-because it's close enough to this plan that it's worth supporting.