How hard would it be to implement an "end-of-run stats" for multiplayer?

Me and a couple buddies were laughing at one deck seeming to do all the damage. When we got to the end I was able to see my deck, but it made me wonder how easy it would be to implement a sort of Mario Party-esque end of run stats page for multiplayer.

Being able to see everyone's damage or block or such would be super cool, but I could be totally off base with how easy or not easy it would be to implement. Or if people would even want it!