Holy cow. The Dicelord isn't only very, very well made and incredibly well acted, he is also an insanely interesting character...
A deity who controls everything by chance and merely abides by the rules of probability and chance... That's awesome!
I really hope that we get to see more Dicelord later in the series. It would be a shame if they were done with him already.
Other than that, awesome episode. In fact, might be the best one in a while. Loved the part where the Dicelord predicted the emotions of the characters... I see a Luigi betrayal coming up in the future!
EDIT: And the Lord British part was great!