Peony/Ceres/Siana/OPEN?
The world coming back to her was hazy, but the vision was enough to allow her to dodge the next attack from the slime that had been nearer to her than she had expected, though the attempt had not been graceful. She crashed into the ground and had to roll out of the way of an oncoming flan, but luckily when she found herself on her two feet again her vision had completely cleared.
"My thanks," she called to Uppsala, and she had not missed Peony's instruction, either. Unfortunately, Siana's magical counter was non-elemental in nature, that much she knew, and even if there was a way to combine an earth element into it, Siana would not even know where to begin to experiment, and a battlefield was no place to do so. As it was, Siana had nothing on hand but to continue to wait for the flan to attack her so that she could counter with Sky, and she pursed her lips and turned her attention back to the enemies, slicing her sword through them with what little magic she had.
"I'm afraid I cannot help with anything elemental," she reported.