DD Latios isn't too bad. I believe the common now was Outrage / Earthquake / Thunderbolt. The surprise factor is pretty significant, because people go to special walls then have to say "oh shit" and sack them, or try to take 2 +1 LO Outrages.
ImStillGood (Salamence) (M) @ Life Orb
EVs: 252 SAtk / 252 Spd
Rash Nature (+SAtk, -SDef)
Draco Meteor / Flamethrower / Brick Break / Roost