How to create a "legal-hidden grotto-Ditto"?

[Mirodir]

I've tried to create a Ditto with "Imposter" that doesn't look hacked today (Hidden Grotto). I think I succeeded on most parts but I can't get his Ability to seem non-hacked.

I would appreciate any help. I'm attaching the Pokemon as an attachment but I'd prefer if you told me how to do it instead of just doing it without teaching me.

ditto..pkm

[Ixidior]

Hey doc,

all you need is to put change the 0x42 parameter to '1' at the OT/Misc tab