Marina was tough, and her armor was magic, but a blow like that could still cripple or kill if it caught her wrong, leaving her diving out of the way and snapping up to her feet to keep moving. It was all she could really do; as horrible as the thing was, just killing it outright seemed wrong. That armored back would be hard to damage, though, and she turned and slammed another Water Dragon spell into it, to, if nothing else, make it seem like attacking her was more trouble than it was worth.