Dylan heard the spell she'd shot off...but just smirked as it hit his 'shield'. He felt the disruption in it...and knew that it could only withstand so much abuse from on-coming spells...but he'd done this for a reason, obviously. Everything always for a reason. The Slytherin way.

"The spell I performed on myself was my favorite shield charm that I've learned to date." He was grinning...Yep. He LOVED it, okay. "Impiriano is the shield that acts like a very protective second-skin." Dylan gave her eyes. "IF you've went ahead and cast this particular charm on yourself, you should be feeling a layer of something unseen settled over your skin..." Hey, Alice was a Gryffindor. He put nothing past her...

"Unfortunately...it doesn't withstand everything, though...So, you'd probably have to recast it...if you used it in a duel...Magical damage weakens it..." Nod, nod. "So, did you cast it on yourself....?"

He went ahead and flicked something at her...A rather harmless spell that would've knocked her on her butt.

Flipendo, of course.

He'd know in a moment if she'd cast the shield on herself...