Ever since I heard about Gravity's accuracy dropping powers, I've been trying to think of ways to utilize it. This is the closest thing I've got so far: Team Spooky.
Marowak; LightningRod @ Thick Club
-Bonemerang
-Rock Slide/Stone Edge
-Fire Punch/Fire Blast
-Protect
Dusknoir; Pressure @ Leftovers
-Gravity
-Icy Wind
-Will-o-wisp
-Blizzard/Focus Blast/Sucker Punch/Filler
We don't know how many stages Gravity lowers accuracy, but if it's at least one, then all of Marowak's attacks will act as though they have 100 percent accuracy while it's in effect. Bonemerang is over Earthquake since it does the same damage normally, and only hits one target in 2v2 instead of everyone else. Rock Slide could be over Stone Endge in order to hit both targets, Fire Blast would probably be chosen over Punch in order to hit Scizor better, and Protect is there because this is 2v2.
Dusknoir is designed to pave the way for everyone else. Icy Wind, much maligned in 1v1, will lower the speed of both enemy pokemon with a 100% chance, and is matched with a 100% accuracy under Gravity. Same for Will-o-wisp and Focus Blast/Blizzard (if Gravity lowers accuracy the expected two stages).
Other pokemon outside this duo I'm considering for the Gravity team are:
-Clefable. Only other Gravity user I'm comfortable using. Bonus of having Wish/Softboiled to heal Herself/others. Might be holding a Toxic Orb to deal with my percieved status problem.
-Golduck. Has both Cloud Nine AND Damp, either of which could screw up others, and can run a set of powerful but normally inaccurate attacks, suck as Hydro Pump, Blizzard, and Focus Blast. Would benefit greatly from Marowak having Lightning Rod. Probably going to go with Damp.
-Meganium. With accuracy low, I'm not going to have any luck whatsoever with status. Enter Aromatherapy.