-Move between the lasers
-Read the stars and get through them
-Get underneath Kaguya before she sends the halo shot out (avoid the lasers as you do this, but don't worry too much as their spawning speed is slower than the animation makes you think)
-Repeat
That's still three different things to read (Kaguya's position, laser grid, and
upwards-moving double-crisscrossing outwards-expanding circular ring of stars), and each of them is changing positions in relation to each other every wave, because the stars are two "cycles" behind Kaguya, and the lasers are one.
I still have no idea how this 'LSI is luckgarbage' myth ever got started. It's her second easiest boss card and I've had like a 95% capture rate on it ever since I learned how to do it. I mean, getting through the stars can be tricky at first, but it's nothing that 15-20 minutes of spell practice can't do. :V
Well, then maybe I just suck at reading it because I just spent these 15-20 minutes and only captured the damn thing out of luck - I'm pretty sure I went through some stars, as in,
through the exact middle of their hitboxes - without getting any insight beyond "read, move, pray".
Then again, two weeks ago I hadn't 1cc'ed IN's
hard, and last time I checked you were trying fancy stuff like no-bombs lunatic EoSD. :V