Fortunately for Jean, her command over elements was focused heavily on ice. The other ones she wouldn't lean on unless she decided that it would be more advantageous than anything she could do with ice- which wasn't a likely scenario in her opinion. Even if she could use fire, the last time she used it involved setting a forest on fire. It was mostly Grimm-infested so she didn't feel too bad about it, but still-- not something she wanted to do at a relatively enclosed location like the Colosseum.

Once upon a time, Weiss might've dropped her sword at such a move, but she's trained up quite a bit since that Boarbatusk had disarmed her back in the classroom. That didn't make her physical strength heavy enough to push him off directly, which meant she was sent flying back, off of the ice pillar. Only a few seconds of free-falling occurred before another glyph appeared, this one at her feet, stopping the fall easily and allowing her to launch herself back at Jean. Her sword was precisely aimed, attempting to get just between the break and hand grip on Jean's sword. As she moves toward the ice, she shifts her weight through her core to flip and get her feet on the ice beside Jean. If it goes as she planned, the leverage of her entire body moving toward the ice while she swings her sword in an arc up and away from the ice would hopefully force the sword out of his hand.