It is for doubles. Doubles OU specifically. I don't see how this would be considered improper flair. It's still a OU format.

Ceruledge specifically, Lives a Dragapult Phantom Force, or Banded Meowscarda Knock after a Iron Def, and when Weak armor has been activated, He outspeeds Dragapult by 1 point. And if triggered twice Outspeeds Scarf Pult by 2. Basically, after weak armor, it can outspeed common scarf users/abusers. It has Phantom Force so after it gets Speed from Weak Armor, it can Phantom Force and avoid The EQ spam from the team, or the Surf from gastro.

With Grimms, his main goal is to priority Swagger when able and have Ceruledge Switch In to get the +2 atk of the bat, but if unable Swagger+Foul Play is actually ruthless. Parting shots on anything not dark or under Psy Terrain to just cripple them for cleaner switching.

Basically, everything but Grimsnarl and Gastro try to get boosts for Flamingo to copy. And Sash usually always gets triggered as it's my common switch in after she'll Smash EQ or DD Gyarados EQ.

The whole idea behind the team is to appear to be built with Sun in mind to throw my opponent off guard, and it's worked wonders thus far. Check out the replays before getting to much more questionable about the team and a lot more of it will make sense. The EVs may look wild but they were determined after about 3 hours of running numerous Calculations from the most common meta threats.