The swordsman is fighting on Ryu's homefield. Of course he would be fighting at a disadvantage, but that is where he improvises and develops new tactics to keep the fight from going one-sided against him.
And Ryu, like the swordsman a few seconds past, made a vital mistake in one move which he would definitely exploit and throw Ryu into a catastrophic panic. If Ryu can recall back throughout the fight, the swordsman has been revealing two simple actions that he'd been using again and again and again, only in different methods. One, is that he's naturally manipulative with water and ice - from the snake to the wings to the beams. The second, is that most of his attacks are pressurized - from the beams to the mist, which means he's used to constraining massive amounts of pressure in one focal point or over a large area without much problems.
There is a third, which he has been using sparingly and not in the front gaze of Ryu... Is that he's able to leech energy straight off of the surroundings. Gathering it and accumulating it like a charge.
So in a place filled with beyond scalding steam and mist packed full of energy, plus an exponential rise in pressure... What will happen?
But before his little antic is revealed, it seemed like Ryu forgot the Iron Maiden tactic that the snake had in its objective - pierce past heavy armor with pin-point beams the size of needles which would burst through the defenses and into flesh - smaller variations of the main beam he'd used, but enough in short bursts. The smaller dome is but an extra layer of defense, and it would be well noted that the snake coiled around the dome, starting to disintegrate and break through the points in a rapid pace so it can reach the bastard held up inside.
It is, also in an unexpected way, trapping the opponent in one place so there's no misfires this time. Because in a simultaneous gesture, the steam and pressure inside the dome gathered into one focal point above the icy tower under the remaining strength of the swordsman's manipulation -- And in a split second, the energized steam/mist/fog and pressure blasted straight to the top of the dome in a thickness no larger than a baseball, eating straight through the earth and any spires in its way via the scalding vapor --
Coming directly up underneath Ryu's bent body, bursting out of the ground and straight into the insides of the small dome to smash into the foe's body at maximum impact, with one exception; Instead of cold or icy water, it was burning steam. Steam so hot thanks to the flames that it can easily shred the skin and any exposed areas into a pain beyond his wildest imagination.
The snake ensnares the foe's ability to dodge or run away. The blast ensures that it eats through the defense and hits Ryu dead center in the chest.
And finally, while spires launched from all sides towards the epicenter of the dome - the icy tower was there -- But the swordsman was nowhere to be seen within the tower. He knew the implications of a glowing orange earth when he saw one; the last one already told him what would happen. But...
Where did he go?!
The answer would be revealed when a blade shot directly up into the small dome, aimed to pierce straight into Ryu's torso in less than a second after the pressurized blast of viciously hot steam, the right hand holding the blade being... None other than the swordsman, who launched himself at the same time with the attack to catch Ryu off guard in a follow-up combo.
He was breathing in irregular breaths, the deadened senses on his hands giving him an odd impression of holding nothing in his hand while blood seeped through the damaged vessels and ruptured skin on his body - his energy unable to last much longer after this. Sweat beaded down on his face like a torrent of water, but he ignored the salty sensation to put down Ryu in this ambitious move.
True. He'll recieve collateral damage and get himself injured in the process if he doesn't manage it correctly. But to win, he has to fight against the injuries! To land a victory, he has to put himself in danger in order to achieve what is there! Even if it meant having both of them injured simultaneously, he'll drag Ryu down with him to the watery depths of hell if he must.
Because, with an ambitious goal... The swordsman's desire to win is viciously firm.