I did try to make this for Dusknoir, and possibly Dusclops, however, maybe it might interest you I guess.
Name: Future Sight
Attack 1: Future Sight
Attack 2: Calm Mind
Attack 3: Ice Beam / Shadow Ball / Protect
Attack 4: Shadow Ball / Pain Split
Item: Leftovers
Nature: Quiet / Relaxed / Sassy
EVs: 252 Attack, rest to be determined, however, I recommend to invest more into Defense since you have Calm Mind.
Now this might interest you. Even with 65 Special Attack, it makes use of it. Since we have Calm Mind, Shadow Ball comes to mind for STAB. Basically, set up a couple Calm Minds, then use Future Sight on someone that has weak Special Defense (so don't aim for Blissey). With this, this should at least dent some Pokemon while you Shadow Ball away. Sadly, the only answer against Skarmory is Ice Beam, however, it should dent him well after some Calm Minds come to play. You may want to run Protect as well, to help with Recovering if you don't want to rely on Pain Split so much, and also can Scout... somewhat.
You can try to use a Hidden Power instead of Focus Punch, however, this requires you to change your IVs greatly, so just a reminder possibly.
Actually, you can try your luck for Charge Beam over Calm Mind, however, it's a little risky. I'd just take Calm Mind over it.