Because it was his understanding that Sora and Riku were the only wielders of the Keyblade.
Because Roxas is Sora's Nobody.
yes, because since Sora wields the keyblade that means that his nobody also wields the keyblade. Also, another way that Roxas is sora's is if you take out the X in Roxas and rearrange them you get SORA.
It disappears that's it, but there are copies of them.
Roxas was created when Sora stabbed himself with a keyblade. So, he is Sora's nobody.
... do you mean Xion? If so, Xion isn't Kairi's nobody, Namine is. Xion is simply the result of an experiment in Castle Oblivion on Sora; she's an "imperfect replica of Sora". That's why she's able to wield the keyblade
For right now nobody knows what the name is even i dont know...................yet
I'm not sure but i would guess that sense the keyblade is basicaly the only thing that can kill nobodies and when someone becomes a heartless a nobody is created and everytime the keyblade kills a heartless a hearts is sent up to the kingdom of hearts. and the members of organization 13 need kingdom hearts to become whole. so the keyblade is used to shut the door to darkness and to OPEN the door to LIGHT.
Keyblade Wielders can wield a Keyblade. Keyblade Masters can too, but they have also passed the Mark of Mastery test.
The strongest keyblade (in terms of attack power) is the Fenrir Keyblade.
The keyblade chooses the keyblade master, the Kingdom Key chose Sora, Way to the Dawn chose Riku, but only Kairi's keyblade didn't, Riku gave her the keyblade
The keyblade masters are defined as ones who wield the keyblade because of purity in the heart. Some known keyblade masters are:Master EraqusTerraAquaVentusSoraRiku