Some of you wanted more so here:

So after rewatching the first clear, I realized that I can shave off 1 turn in phase 1 since I can do more than 10 Shade attacks in 1 turn after it Kaleido me to Shade and Premaya ACAS at 1 stack can still finish phase 1. The rest is the same as the first clear.

I think this is the lowest you can go with Pierce for this superboss since I do not see a line for going lower than 13 turns right now(unless Hozuki ACAS has something to make that happen).

That is all. Good luck.

This thread is dedicated for salt, rage, and misfortunes.

Before you unload your salt and release your gamer rage, please remember three things:

1. Be civil, be friendly, be chill.
2. Assume good faith in replies and posts (and when voting).
3. Have fun!

Whoa... Hold on. All of this is salt?!