Sometimes, even though you believe you are playing quite well, there is one particular enemy against who everything seems to go wrong. The most ridiculous attacks bedazzle you, the simplest spellcards never get captured and "FFS, WHY ISN'T MY BLOODY BUTTON BOMB WORKING?!?!?!"
This is where you can rage about and/or beg for tips from those who can take down the beast that haunts you.
And since I'm starting, RAAAAAAAAAAAAAAGGGGGGGGGGGGGGEEEEEEEEEEEEEEEE @ Youmu in PCB. It's amazing, she kills me twice as much as Yuyuko and is being the greatest obstacle to my first good ending (Damn, I might end up killing Kaguya first if things stay like that). She's even worse than Stage 4, which seems to have terrible curse properties (with the bombs simply refusing to be used). I've been practising PCB stage 5 but sometimes I can barely make it through (Hell, you start the practice with max lives!). Curiously enough, I'm sort of getting the hang of most of her spells but, oh gods, her normal attack barrage... Those green and yellow balls are my absolute doom. It's a shame Marisa only gets two Sparks per life...