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Unvanquished rose after the attack slowly, still looking down at his blade.
"Hm... Just what I expected from my sensei," he admonished.
He lifted his sword, turning it over in his hands before sheathing it.
"I would most prefer not to be held back against though. I know that that stirke would not have scathed you if you were fully serious. And so..."
He one foot back, scratching against the ground like a bull grinding it's hoofs.
"I have refrained from using my Way while training in the Lunar Arts. Now I will use both. Sensei, please, hold back no longer--"
When Unvanquished finally looked up at his master again, his eyes were red with subdued fury of ethereal origin.
"--or you'll die."
Soon his body was engulfed in a seething red glow, trailing off of his back and shoulders like steam. A wheel of fire appeared on either side, and his arms rose to grap thier centers, each removing a weapon from either before they dispelled into air.
The two swords spoke of fury in themselves. One was thick and vicuously curved, with a skull-shaped pommel and no crossguard. The blade was black, but covered in cracks through which magma coursed. The other was staight, an arming blade, with it's entire blade wrapped in flames, all the way down to a gilded handle. He drew both back into an attacking stance.
"Gokami-Ken ryu kenjitsu, fire..."

Unvanquishedwith a wordless acknoledgement, lunged forwad with such force that the his foothold crumbled as his feet left the ground. In a revolving spin, one sword slammed against the ground, producing a vertical wave of fire in Xaiamut's direction, while the impact of the blow sent Unvanquished upwards. Unvanquished came down brandishing both blades with overpowering strength just as the wave reached Xaiamut, attempting a two-pronged attack from both in front and above.
This was the fire form of Gokami-ken. It's user would channel the power of flames through their bodies and weapons, and the raw boost to physical strength was greater than that of the Luminary techniques.

The resulting cloud of dust and debris covered all from sight. From the malestrom of gravel, a red beast burst out. Unvanquished charged straight at Xaiamut like a bull and lept upwards, spinning his body horrizontally in middair with both blades extended outward, forming a wheel of fire sent crashing down at his opponent. The power behind the swing alone could cut steel with ease, or cleave glass without shattering it.
For fire is rooted in passion, and passion was what granted Unvanquished this godlike strength. Charging, attacking viciously, and with titanic force; this was the essecence of the fire form.

Unvanquished watched grimly as the blade came down with the knowledge that he had no immediate way of stopping it. He made a silent shift from the offensive nature of the fire form. Just as the sword came down, Unvanquished closed his eyes, his firey aura changing to a steady glow.

The blade struck, and another cloud of dust flew into the surrounding area.

When it finally died down, something large came into view.

A tremendous sphere covered in japanese kanji stood in the crater created from the impact. It's swirling copper-and-black-colored surface shone with refracted light; it was clearly made of raw metals, combined and hardeded into a powerful shield.

"Earth form, Tsuchi Yousai..."

The sphere sunk into the ground, as if merging with the very earth, leaving no traces of entry behind.

"The next move is yours, master..."

Unvanquished did not flinch; the indomitability was trademark of the earth form.

"To master Gokami-ken is to master one's spirit. And before this is over, I plan to show you the strength of mine."

In a clear, resolute voice, he called, "Kakure Tsuchi Yousai!"

Another metalic sphere appeared and merged into the ground, this time, encircling Unvanquished and taking him with it. Unvanquished had dissappeared completely and in a mere moment, the lightswords hitting only air in their flight.

Without a rumble, without a sound, earthen pillar shot up to Xaiamut's side diagonally, aiming for a blow on his upper body.

The pillar bbreaks and returns to the ground. Only silence follows, save the sound of the cool twilight wind whistling throughout the hallowed mouth of the cave. The surroudnings remained in this state for a moment.

Then...

"Tsuchi Orochi Daigeki."

With an sudden crash, a gigantic snake erupted from the ground and trailed skywards. It looped in the air and dove down at Xaiamut , using it's gained height to charge downwards with its whole body behind it, like a train. It opened it's jaws wide, ready to sink it's fangs into it's prey.

As the first snake fell, returning to the earth, a second snake began to form... right under Xaiamut's feet. Two enormous lips appeared, followed by fangs. By the time the gravel of the first snake reached the ground, a full head emerged with jaws on either of his sides, poised to snap shut on Xaiamut's waistline. If caught (and assuming he would not snap in half), he would be pulled underground by the snake's head.