Minor addition.

[Udlmaster]

In the Grimoire of Marisa, Flandre Scarlet was stated to have dissapeared, now, we know this is different from other Survival Spell Cards as they often just fly off, but here it was stated that she "dissapeared" and we know she didn't turn Incorporeal as the 2hu's can hit intangable beings (Spirits) So did she turn invisible or perhaps something else, similarly something could be added to Yukari though it's likely that she just gapped away.

 

[Udlmaster]

Also could Remilia's blood be considered a Weapon, we know she has blood manipulation, but in the Grimoire of Marisa (Again):

"Apparently, blood packed with vampire essence is enough to make danmaku. The blood moves on its own and becomes a powerful spell card."

Could this mean Remilia and Flandre have a "Thorns" Like affect when struck?

 

[Udlmaster]

Darkness or Night Manipulation for Remilia?

"While Master Spark comes from the fire of the mini-Hakkero, this skill of hers comes from collecting the power of the night. It's said that one look will make your eyes red and sleepless."

 

[Saikou_The_Lewd_King]

1. Didn't Flandre have invisibility anyway? I guess it seems fine.

2. It's just blood manip. Most likely not automatic.

3. Night Manip isn't a thing. She just draws power from the night.

 

[Udlmaster]

My apologises, could it be darkness manipulation then?

 

[Saikou_The_Lewd_King]

Not really, unless she can directly manifest darkness this way.

 

[Udlmaster]

Ah, I see, thank you.