The javelin certainly did come out of thin air - it's not something she's really realized she can do yet, or at least she hasn't put much thought into it. She just wants a weapon and it's there and that's cool. Someday she'll wonder how that happens, but that day won't be today.

No, she's too focused on leaping onto the hood of the truck that she just stopped with a rocket launcher to the face and stabbing the javelin through the hole in the windshield into the head of the driver. If he wasn't dead already, he sure is now. Withdrawing the javelin with a splatter of blood, she grins over at the man who'd leaped up with her.

He's kinda crazy, fighting with a sword of some sort, and he looks like he's trained but it's mostly rage driving him. And she finds that amusing, interesting, chaotic in the best way, and laughs, jumping off the hood of the truck and taking on another one of the Sylphid who swarmed out of the back of the truck, whipping her javelin across his throat. While Kylo is fighting out of rage, she seems to be fighting out of pure glee.