This is something I never noticed before. I am using a Raichu in my Sun playthrough, and noticed that it's leveling unnaturally quickly. When I defeat a Pokemon, it says it gained a "boosted" amount of EXP. What could be doing that? It isn't holding a Lucky Egg. I've never traded Raichu before, it's always remained in my card. I know that my EXP. Share is OFF - I do know that it can label it as "boosted" if used in battle while a Pokemon was under the effects of an EXP Share in Gen 5, but I haven't seen it since then. I'm rather confused.