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Finally, there be a new multiplier applied to the modified Reward Points which will be based on the amount of staked SPS the player has in their account (both owned and delegated), which will determine the final Reward Points earned from the battle.

It won't affect what's in your chests but it will definitely affect earning them. If you're taking a huge penalty to your RP, it's going to take more battles for each chest you earn.

Good catch on individual chest EVs though. I'm not sure why I was originally calculating those with a penalty.