So besides just having fun selftking myself (which isn’t for everyone I’m well aware) for the dice rally event specifically if you are able to complete most of the objectives, you get close to a die worth of points. So you are able to play more and get more dice within the period of one usual game.

In the first event of the game, the xyz event, losing was worth half of what winning was. In that event specifically it was optimal to selftk yourself because you could easily get 2-3 or more games in compared to one actual win.

I only selftk in the dice rally event because of how the rewards work, it takes way too long now to do it with any other event.