Is there any tips for Mokou's first spellcard? I captured it few times before but normally "by accident".
Here's a timeout. Don't worry about the risky slips past the red knives once I make my first lap; the card ends well before that at about 38 seconds left (with the Border Team, Alice and Remilia should take even less and Yuyuko not much more). Some things to note: I start on the left side to skip one green line of shards (those bullets are the most annoying in this card) which also happens to misdirect the red knives quite well. Slip through your first green line under Mokou to maximise damage, then your second at the turnaround (around 44 seconds left). Whenever you go through such a green line, look closely at
the bullets and don't hesitate too much to slip through them. They are the biggest threat here. Don't go through crossing lines of green shards and blue knives, though, let yourself get pushed through the knives first. Don't neglect the red knives on your way back to the left, either; adjust your height in-between the green lanes. The greens should be your focus, though.
This card is one of her trickier ones and it took me a long while to get it down (and I'm still not very consistent at it), so don't get discouraged!
For Seija's last (talking Normal here because I haven't bothered with Hard yet), the trick seems to be to go into the correct corner, that is the one that won't get you walled in, and just consistently go into the right direction (depending on the orientation) without letting the flip throw you off. If you need to go to the left at the bottom during one wave, hold left even as she flips; don't panic and turn around. I have a hunch that it's easier to wrap your head around (oho) than her second and it's pretty much just a "get used to it" card (which we've already had plenty of, think Koishi - especially Ancestors/RotI/Super-ego). I think the flipping is really not bad at all aside from the second card - for the first card, I just wiggle left and right a bit to get used to the controls and then it becomes child's play (again, at least on Normal). Normal Shou is definitely harder to me than Normal Seija.