Board Thread:General Discussion/@comment-26084508-20151006071311/@comment-26091443-20151007003651

Qhina-chan wrote: Ban alone can't beat them... but : if King join him, I think they'll have a chance to beat one of them, at least. What would make you think King could help him beat one of them? We saw what happened when Galan fought three Sins and a whole bunch of holy knights at the same time; absolute slaughter. And that was with Meliodas becoming much more powerful than either King or Ban is.

At best King can help them escape.