Sol completely surprised by Mithrail's sudden change it tactics was only able to see the kick at the last moment when it was to late to dodge. Obviously standing his ground would be idiotic and only get his leg snapped so he did the only leg he could, leave his legs completely limp and unsupported. Sol's lethargic mind went into overdrive attempting to discover a solution in the brief seconds he had before he got smashed into the ground.
Suddenly it clicked and Sol let the force of the kick fling him into the air and somehow managed to flip himself while in the air and land on his feet again, somehow unharmed by the attack even though his legs nearly buckled out from under him from the strain. Sol grinned shakily, "That... all you got... princess..?" he managed to gasp out, he was probably giving himself a death sentence here but he was pretty proud of himself right now consequences be danged. No more than 10 seconds at most before he fell unconsious or at least lost the ablilty to move.