Dropped past rank 100 and scrawled through WGSB's livestream to see how he got top rank. Turns out people are just using a chinese video and following the rotations, I did the same and jumped to rank 10 for the time being. Here's the bilibili video WGSB copied his prophecy rotation from:
https://www.bilibili.com/video/BV1yqecz1Er5/?buvid=Y544F5557ECS0FBD44DB839SB904OB7185099

Or you can use my scuffed notation (ymmv I have acapella ult lv7 and echo gear no BSR):

@ 5PP: acapella
8pp: TAiona -> FBella -> Acapella -> Sirene -> TAiona
wait...
9pp: FBella -> (mechanic) -> Gilrain on Mechanic -> TAiona when balls are between A/B keys moving back -> acapella -> sirene
wait...
9.5pp: TAiona -> FBella -> Acapella -> Sirene
wait...
8.5pp: Mechanic -> Gilrain -> TAiona when balls are.. -> Fbella -> Acapella -> Sirene -> On TAiona Skill Finish TAiona again -> Acapella
wait...
1:42
8pp: FBella -> TAiona -> Sirene -> Acapella -> Mechanic
wait for 9.5pp in mechanic -> gilrain -> FBella -> TAiona when balls -> Acapella -> Sirene -> On TAiona Skill Finish TAiona again -> Acapella
0:43
wait for 8pp: FBella -> wait for mechancic -> Gilrain -> TAiona when balls -> Acapella -> Sirene
wait 8pp -> TAiona -> FBella -> Acapella -> Sirene -> Gilrain Done (YMMV after Sirene due to timing)

For teams 2 I just used the DOT THati team + SAiona, and team 3 is whatever I could throw together with high bp.