"You saw your friend Ron over there fight me and barely do anything. What suddenly makes you think that if you fight me again, you would win?" Silva asked.
"Well, the reason is simple. The soul of Ron that fought you was not the hero candidate. Only one of his souls is the hero candidate, and that is the one that will fight you this time.
I can tell that you are quite strong, but against the three of us, we would surely win, and that's a fact," Riker said.
"Ohh, so three versus one. I didn't know that was how heroes played their games. How do you expect that I'll fight the three of you at the same time?
Sure, I can do it, no hassle, but why should I? It's unfair on a numbers basis, and you are insulting yourself and the heroes that sent you.
You are saying that the current generation of hero candidates is incapable of handling one demon king candidate.