Lead:
Jumpluff@Choice Scarf
Jolly - 252 speed, 252Hp, 6 Atk
Memento
Suicide, hope the enemy changes.
Ninjask@Focus Sash
Jolly - 252Hp, 252Speed, 6 Atk
Protect
Swords dance
Substitute
X-Scissor
BP. Substitute doesn't really have any reason to be there, nor does X-scissor.
Metagross@Shell Bell, clear body
Adamant - 252 Atk 252 Speed 6 Hp
Thunderpunch
Ice punch
Earthquake
Meteor Mash
Gets BP'd to and, if that's done successfully, annihilates everything. Shell bell is probably not going to do much. I expect it to be doing ridiculous damage and that kind of gives it the ability to recuperate after a hard hit and let it sweep longer, but I haven't tested this.
Physical wall:
Steelix@Leftovers, Sturdy
Impish - 252 HP, 252Sp.Def, 4 Def
Roar
Stealth Rock
Earthquake
Toxic
Already tonnes of Defence so the special defense is to help it survive special attacks.
Special Sweeper:
Azelf@Life Orb, Levitate
Naive - 252 speed 252 sp.Atk 6 Atk
Grass Knot
Flamethrower
Psychic
Explosion
Pretty standard, I believe.
Revenge Killer:
Absol@Choice Band, Super Luck
Adamant - 252 Atk, 252 Speed, 6 HP
Pursuit
SuckerPunch
Me First
Stone Edge
You're probably thinking (Absol's base speed) does not revenge kill. However, it does damage enemies heavily on the switch, hit them before they can hit back, outdo a slow tank's powerful physical attack or use stone edge.
The plan is to pass the stats Ninjask builds up onto Gross and sweep. If that doesn't work then I have a few misfits that can hopefully pick up whatever Gross didn't manage to kill, but they're not really worth that much. It's pretty much a one trick pony.
As I'm sure you can tell, it's terribly thought out if even thought out at all. However, it's what I've got from two years ago and I'm not sure I want to start a whole new team. If this sucks as much as I'm pretty sure it does then I'll probably need to do that anyways, but oh well.
Be as harsh as you'd like, I think I need the criticism very badly.