We were trying to learn some lineups on Split and got bored and murdered Kay/o with his ult, after reviving him the Odin appeared like this on his screen. We were able to replicate it with knife, but we don't know how to cause it. https://...

To counter abuse of the reroll system they can limit the reroll up to either once or thrice, or that the discount lessens the more rerolls you do.