I haven't done any tests on switch changes since my last post. I'm sorry. As for Mega-Evo, it apparently loses it's effect upon changing. Tested on 252atk/252def Aggron Heavy Slam [Baton Passed into Power Trick] v. 252hp/252def/reflect Sylveon 252 Atk Mega Aggron Power Trick Heavy Slam (120 BP) vs. 252 HP / 252 Def Sylveon through Reflect: 163-193 (80.6 - 95.5%) is what should have happened. " I was skeptical when it actually only did 127 damage However, the following calculation seemed to make more sense: 252 Atk Mega Aggron Heavy Slam (120 BP) vs. 252 HP / 252 Def Sylveon through Reflect: 111-132 (54.9 - 65.3%) -- guaranteed 2HKO indeed, the stat update of mega evolution nullifies the effect of a baton passed Power Trick.