On a roll, went over to clearing Marisa's challenge stage no damage. Quite a bit more difficult, and I definitely ended up relying on the spell cards to save my ass more. Probably would've remembered how to dodge her attacks if I hadn't gotten a clear by spamming so fast.
In honor of Clownpiece's new theme, I finally went back and did a no damage clear of her challenge stage. She's the first boss, so it wasn't too difficult once getting into the swing of it, but it was still a challenging battle. Stage 4's spell card in particular got me a lot because of the precise timing on dodging lasers.