That cloak of her seems to be able to at least negate 1 spell effect.
In Season 1, she used it against Puck's ice too and it disappeared after that, as if it was "de-summoned"
It's the same deal this time around, probably.
Stuff like that really makes me wonder if the magic system is actually properly explained in the source material at this point of the story.
It would be cool if there are RPG like items/elements to it.
The "Blessig of XY" stuff is also very interesting. (for example "Blessing of Wind" and I believe Priscila had "Blessing of Luck." or something? Or was it "Sun"? My memory kinda tells me it's the latter, but I'm not even sure if that's something I read in a comment section somewhere or if that has been mentioned in the anime at some point in time
edit:
It's kinda a shame that we don't get to know more but on the other hand, it's cool too because it's pretty much the same for Subaru, he has no idea what mages are capable of.
edit2:
the heck, we are already 11 episodes in?.... ugh. How is it going to end in 2 more episodes.