I'm glad people like my original ideas so much 
When I tried to run a similar 2v2 challenge with Peja, it died within like one day because people didn't seem to be bothered to take it seriously. You might like to come up with a good idea to motivate the current "king" to keep on playing. And you need to note that the he/she can't really win anything by playing, any activity equals either losing or merely preserving the title. This pretty much violates the point of the challenge from his/her point of view, which may quickly result in a lack of interest as long as someone gains the title.

When I tried to run a similar 2v2 challenge with Peja, it died within like one day because people didn't seem to be bothered to take it seriously. You might like to come up with a good idea to motivate the current "king" to keep on playing. And you need to note that the he/she can't really win anything by playing, any activity equals either losing or merely preserving the title. This pretty much violates the point of the challenge from his/her point of view, which may quickly result in a lack of interest as long as someone gains the title.