[Scripting Question] Ability that only activates after Mega Evolving

Hello, I want to create an ability that raises every stat, but only when the pokemon Mega Evolves. For example: Spiritomb Mega Evolves->Ability activates->atk, def, spatk, spdef, spe raise one stage

Is something like this possible? I tried modeling it after Download, but I don't want it to activate every time they switch in, only after mega evolving

Thanks!

Yeah, that's not too surprising given that you've written the code (presumably) under pbAbilitiesOnSwitchIn.

If it's Mega Evolution only, then you could try sticking your script at the end of the pbMegaEvolve function in PokeBattle_Battle? Of course that means that your code isn't on the Pokémon, but on the battle, so you'll have to change any references to Pokémon methods to be prefixed by "@battlers[index]", e.g. "@battlers[index].hasWorkingAbility(:MYABILITY)". (Or maybe "@battler[index].pokemon", I haven't tested)

Coding issues aside, this seems like a somewhat odd ability given that you can define higher base stats for when the pokémon mega evolves anyway.
Unless you just want an OP pokémon who gets higher stats AND a one time free stat boost.