Genghis Khan - The Ultimate Hero?

[Liese]

Since this is kind of related I have a random question. If someone recruited pompey or khan from guild chests/fair would they still be able to eventually fight them for a card to saint them with? haven't heard of anyone strong enough to beat them winning a card yet.

I have Khan and have beaten Pompey. I cannot challenge Khan. I also do not have the +5% increase coin/creds benefits from Khan, either. I know that I would not be able to beat Khan anyway, but without a way to challenge him, I will never be able to get that 5% in the future in its present state.

Also concerned on if I'd be able to challenge a hero after Khan should one ever be added. Perhaps someone who has picked Pompey up from the fair/guild chest and has also gotten to him in Royal can shed some light on this part.