Colour, too. This is... she doesn't even have words for this. It doesn't seem like it could be solid, much less strong enough to hold back a substantial blow. Aveline adjusts it, cycling through colours -- green, to yellow, to orange, to red.

"This will really hold?" There's a share of scepticism to her tone. It's definitely lighter than a metal shield, which is a huge advantage, and she'd have to get used to it, but that's not so impossible, either. "This is... is this some sort of magic? I was beginning to think this place had none."

Because while she's seen spells that are something like this, she's never seen anything else even close.