She wasn't sure if she was actually casting spells here or not. But Raph seemed to be able to do some damage the thing pretending to be Abed's friend with his ring, so...

Her constructs were clumsier; tendril after tendril slapping at the fake Troy before hitting the ground. Of course, if any of them actually hit him, he'd be stuck fast where he was, a stationary target for Raph and Abed.