This is a tribute to Avengers Infinity War. Dreadknight is definitely not a villain that ever got really popular but he is reasonably tough. He rides a swift steed and his skill with a lance is unparalleled. This combination means that he can always force his opponent into a close quarters fight. That being said, Ironman certainly wouldn’t mind one as his current armors give him superior speed to Dreadknight and he has the ability to morph parts of his armor into whatever weapons he needs. Ironman wins.