Samuel
*Xion takes the hit and is sent backwards a good bit but then her eyes flash with a mixture of rainbow and black magical energy* "Ok... I am *Done* With you! Eat this! Unnamed Finisher!" *She channels everything from her sparks into her sword, blue and red rimming the edges as it flares up and then goes bright, golden yellow as it grows even larger, completely dwarfing herself in size before she brings it down on the Eidolon even from across the arena, slowly cutting downwards before with a final yank downwards, it clears through the god, even slicing the arena floor open in the process. After the Unnamed Finisher is completed, the new look dissolves into darkness, leaving Xion in her normal clothes and her sword separating into the two weapons she had usually* "That was totally wicked! Though I really need to get a name for that technique..."

Unnamed Finisher: 691 Dark/Fire Magic
Patricia
Odin stopped his rapid slash on everyone with a trample of Slepnir's hooves. He could feel that he connected with some of the people, but the one with the bright light managed to evade his blow. He didn't have much time to do much after that fact though, as he was soon engulfed in a massive bolt of lightning and then envolped by a massive laser in a giant, colorful blast. 

By the time the smoke and explosions cleard, Odin was on the ground using his sword as a crutch and Slepnir resting on the ground with all 8 legs tucked under him like horse loaf. 

"**Ah... Truly splenid... Though before I go... I will pass on some knowledge onto you Warriors of Light in this world... Defeating us Eidolons means you can summon our aid in battle... There are 11 more beyond myself... And I have a feeling that they will appear in this land within your world... Also beware of that woman that conjured me: she did beat me much faster than you all have...**" 

Odin would say with a small laugh before vanishing, his and Slepnir's body vanishing in a neutral yellow light and leaving behind Odin's Summon Gem: useable by everyone.
Mark
The Princess would look from the vanishing god to the other three present. Her eyes were devoid of emotion and almost robotic, seemingly as if on auto-pilot. She seemed to be looking at Xion in particular.*

"You used the darkness... Darkness... Should be... Purified."

*She took a step towards Xion, before collapsing, catching herself on one knee and leaning on the weapon that still remained as a keyblade. She looked weary, before the ribbons of light seemed to slowly slip away. And in a flash of light...*
Dorothy
*The oh-so familiar red-haired boy had returned, still in the same pose as the princess.*

"Did we— did we do it?"

*Ikazuchi said, out of breath. He pushed himself back up onto his feet and looked at the others present.*

"I guess we did... I no longer see that giant here."
Samuel
"So uh... Your other side kinda seems like she wants to kill me cuz I used Darkness? Why is that? I'm still good. I use light and dark but primary light."
Dorothy
"H-huh? Sorry... I don't really remember anything that just happened. I felt a calling from within my heart so I just poured some of my light in to it... The last thing I remember is casting that spell whilst in the air..."
Samuel
"Well you turned into a girl and she basically just threatened to murder me because I used Darkness- I quote 'You used the darkness... Darkness... Should be... Purified.'" *Xion repeats in a perfect impression of his other self*
Dorothy
"Hm... So it turned out like before back at Traverse Town." 

*His immediate thought going to what would happen if he let this 'other personality' take over around Suke...*

"That's not very good... Apologies, think nothing of it. To have darkness means to have light, and to have light means there will always be a darkness..."

*He looked through the crowd of spectators, seeing if he could spot that hooded woman anywhere.*

"I'm just glad i ran out of energy before they could do anything."
Jeffery
*Silax appeared through a corridor of darkness infront of Ika.* "Well done. It seems you will be up to the task after all. I began to have my doubts. Now I know it truly will be you all that will stop the darkness. And free the hearts from them..."
Brian
"Stop the darkness? What are you on about huh!? I may be weakened but sure as heck will scorch your darn hood off!" Rarity summoned her Keyblade yet again and gritted her teeth. "Who are you!? And don't start giving me riddles!"
Laura
Fluttershy gulped in fear and began to shiver. "T-Thats not good...! R-Rarity i t-think theres no need f-for-"
Brian
"Dont even Fluttershy, it's about time we get anwsers for who this punk is!"
Samuel
*Xion sighs* "Let's not please. She can probably kick your asses five ways to Sunday. Probably mine too in this state. So how about we *Don't* Piss off the mysterious figure who is probably a key plot point?"
Dorothy
"I don't trust you in the slightest. What role do you play in all of this? Why 'test' us?"

*Ikazuchi frowned, but didn't raise his weapons, knowing he was too spent for another fight.*
Jeffery
"...I am simply... Nobody." *Silax chuckled at her own joke, despite feeling nothing from it. She knew everyone wouldn't understand her joke, but wanted to see how they would react.* "My role, is to simply guide you all. Nothing more."