Sorry, I know I said this exact phrase several times, but now I really, really don't understand what you're saying. Game & Watch and ROB are original characters, so you want to combine the things that make them original in order to make a character who, for some reason, will be considered original because he ripped off of other characters. And because this character exists, the characters he took his defining attributes from won't be held in as high regard? The only thing I really get out of this is that it's almost like you're arguing G&W and ROB should be removed.
I've never heard anyone say Krystal would be a ZSS clone, though, and I've almost never heard people say Ridley would be a Bowser clone, but I don't see how that has to do with people thinking your idea to make Diskun a combination of G&W and ROB (because what those hypothetical people are saying is probably wrong, while what you're saying they would say about Diskun isn't).
But Ganondorf only has one or two more unique moves than Toon Link.