The Daily Grind

The textbook definition of a Semblance is an aura fueled ability that's almost always unique to an individual and usually has a lot to do with their character as a person. Olivia, Jaune's twin sister, could create blades of energy that protrude from any part of her body. Several of his sisters had explained that Olivia was extremely shy and standoffish when she first met new people, so having a prickly Semblance wasn't too much of a surprise. While Olive's Semblance was seriously badass, it wasn't even the most powerful amongst his sisters...

Petunia, Jaune's eldest sister, could more than septuple (X7) the gravity being applied on any object or person that she desired within a 3 meter-wide radius of her body. What this meant was if you let her get close enough, she could make it so that just staying on your feet felt like you were trying to carry a thousand pounds, give or take a couple hundred. Needless to say, Petunia Arc very rarely had to actually use her physical weapons on anyone at all. All she really had to do was close the distance and bam her opponent hit the floor.

Jaune liked to think that his eldest sister had that particular Semblance because she liked to impose her will on the people around her (him being a prime example). It was an unkind and inaccurate judgment to make, because the members of the Arc family were generally both kind and generous. Truly, if Jaune's family had allowed him the personal freedom to make any of his own decisions, they'd have been just about perfect. As things stood however, their specific brand of 'devotion' felt more like the out of control fanaticism of a cult.