AN: Expect oneshot like these every once in a while as it helps with the flow of my creative juices. This came to me as I was playinh Kingdom Hearts 2. Enjoy!
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Valor
When he first obtained the Valor form, there was this sudden rush of energy that wasn't his own. Perhaps it was the thrill of fighting the Heartless? After a while, he found out it wasn't that at all. He found out that it was actually Goofy's excitement and adrenaline. Goofy loved peace,which was why he chose a shield instead of a blade. He also felt the need in Goofy to protect his friends. Sora's determination was strong but with Goofy 'merging' with him...he felt like a whole new defender.
Wisdom
Sora wasn't one for magic. Only using them when his friends were hurt and when he quickly needed an upper hand. When he fused with Donald, he felt an odd sensation. He could feel the magic surrounding him and that was when he noticed that he was floating! Yes...floating, he had trouble moving at first but in the end, he quickly regained control and destroyed the heartless with a ring of fire, shocking them into goo and freezing their shadowy asses off. In the end, he still didn't favor magic but just used it to learn Quick Run.
Master
He could feel it. The rush of Valor and Wisdom formed into one...Completely exhilirating. He wasn't floating like in Wisdom form nor did he feel the rush of adrenaline that accompanied him when he entered Valor. No. It was something else. It was the calm that came with it. It was the calm of a veteran of war. He had complete confidence in himself. Heartless or Nobody...They would be defeated by the blades of a Master.
Final
This was it. As soon as he entered this form. He felt complete. The light surrounded him and drew his friends close. He could feel their hearts melding with his. Becoming one. It was breathtaking. Similiar to Wisdom, he was floating but this one held more grace, but with each 'step', it held power as well. Power that unleashed the true potential of the keyblade. He lost himself in battle and he swiftly destroyed them all with a calm face. With one final swing, he had rescued another heart.
Anti
Darkness lies in our hearts. It lies in each and every one of us. When that darkness takes control, we become heartless. For Sora, it was a different case. At first, he felt his friends merging with him only to feel something creeping up behind him in his heart. As his friends hearts melded to unleash Sora's hidden power...It struck! It clawed at his heart and fought for dominance. It didn't always win, no. There were times when his light was too bright and destroyed his darkness. And there were times that the darkness, succesfully tainted his heart and unleashed his Dark Potential. Sora's inner heartless had only one wish and that was to destroy anything that wished it harm.
