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Probably not soon enough. I've been saying since XY they should make the EXP Share into some sort of ultimate EXP managing tool, letting you toggle every Pokemon EXP is shared to, being able to disable the scaling for postgame grinds to 100, even letting you make it so a Pokemon gets no experience for challenge runs or just to not get horribly over leveled without boxing the Pokemon stradling the curve, and maybe some unlockable multipliers built in like as a reward for clearing thresholds on the Battle Facilities.