This time it werks, Marisa staggering it's not an issue, it's just a safe measure to ensure that during gauge 2 she stays ded, just use graze cause sometimes she get stunned while other times she does not.
Extra notes: Hecatia incense upgrade are not needed, I'm just in the process to upgrade her. Comp should work at 15SP too by lowering the difficulty level by adding more artificial difficulty™, but, since their HP pool nearly stays the same it's pretty pointless. It's also nice to see NN filtering the use of even more units by making everything as less f2p player as possible.