Quoted By:
Mega Smeargle
Normal
Ability: Protean
HP: 55
Atk: 60 (+40)
Def: 65 (+30)
Sp. Atk: 60 (+40)
Sp. Def: 65 (+30)
Speed: 95 (+20)
Smeargle went from a base 250 to a base 400. That's still incredibly low, but it is significant enough given both the ability and the nature of Smeargle.
I'd say that if you were playing in VGC, a good strategy would be protecting with a couple moody boosts, mega evolving, and then play based upon your boosts. The idea is to try and make Smeargle somewhat usable offensively, at the end of the day. It would be gimmicky, sure, but still cool.
A good theoretical moveset would be:
Close Combat
Diamond Storm
Brave Bird
Recover (with the added bonus of turning you back to normal type)
The calcs on this prove that it would be a great mon, if a bit of a glass cannon. Maybe I could up its speed a bit more?