Incase my Edit goes by unnoticed;

[@Avalant]

"Hm... How about, instead of focusing more on Carv's ([s]yes im fricking lazy screw you all[/s]) magic potential, you could perhaps focus on allowing her to mix some elements of her parkour abilities and her magic abilities. Or perhaps make her parkour abilities themselves strange! For example, you could let her sort of slither through walls that people would normally be unable to parkour through with her own summoned rats.

Personally, mix-and-matching existing powers can actually bring out really weird stuff... and sometimes, really rare gems."