Dino's film company had a script and film rights to a couple of movies Arnold wanted (I am not sure, but I *think* one of them was the Crusades movie Arnold has long sought to make). He was willing to pay the top dollar asking price. But he wanted revenge for him being trapped into doing those two shitty movies, so he waited until the guy was nearly broke, and his film company was done with. Then he had a rep. buy the scripts and rights for him, for a rock bottom price. Pretty cool if you ask me!
And yes, that part with him swinging the sword was awesome. I love the ending though. When he is sitting on those steps alone. It is a powerful moment in the movie.