Okay so I was just thinking that well whose heart did Roxas have? I know most people would say Ven. But I think that Roxas had Sora's heart. Okay, so Vanitas came out of Ven's heart, and he looked like Sora. Now, in kh2. When Sora is sleeping, Ansem says, "His heart is returning, doubtless he will awaken very soon." Now your like, well how about when sora lost his heart in kh1, and got it back. Well, what I think what happend was that when sora realesed his heart. It realesed Sora's, and instead Sora got Ven's heart. So he was still able to use the keyblade. Remeber, Sora was never ment to use the keyblade, only Riku.
That's all I got so far, i'm trying to make it better. But just try to understand. lol
Okay so I was just thinking that well whose heart did Roxas have? I know most people would say Ven. But I think that Roxas had Sora's heart. Okay, so Vanitas came out of Ven's heart, and he looked like Sora. Now, in kh2. When Sora is sleeping, Ansem says, "His heart is returning, doubtless he will awaken very soon." Now your like, well how about when sora lost his heart in kh1, and got it back. Well, what I think what happend was that when sora realesed his heart. It realesed Sora's, and instead Sora got Ven's heart. So he was still able to use the keyblade. Remeber, Sora was never ment to use the keyblade, only Riku.
That's all I got so far, i'm trying to make it better. But just try to understand. lol