As in, jumping on the. I tried to hold out my originality and creativity, but it failed in the long run. I created a Sandstorm team here a while ago (Darude) and I'm still working on that, but I've made some major modifications over the past few weeks. Well, maybe not major. But enough to warrant a new thread.
move 1: Stealth Rock
move 2: Crunch
move 3: Pursuit
move 4: Superpower
item: Focus Sash
nature: Careful
evs: 252 HP / 4 Def / 252 SpD
This is usually my lead, and it's been doing the job well. Sandstorm is great to get going as soon as possible, to really make that residual damage count. With Focus Sash Tyranitar will be alive to restart weather later if necessary, and is guaranteed to at least set down Stealth Rock if I keep it in. There's not much that has to be said for Tyranitar, everyone knows what it does. This one's mainly defensive, to act as a backup special wall and do heavy damage with Superpower and Crunch's good coverage, and Pursuit picking off stronger but frail attackers. I may be convinced to switch this for Hippowdon, depending.
move 1: Swords Dance
move 2: Earthquake
move 3: Rock Slide
move 4: X-Scissor
item: Life Orb
ability: Sand Rush
nature: Adamant
evs: 4 HP / 252 Atk / 252 Spe
Again, this one requires little explanation. When you use a gamebreaking Sandstorm team, Excadrill is who you think of. Even if they stay in, Excadrill's high HP can take a lighter hit to Swords Dance, but thanks to Adamant and Life Orb it can deal heavy damage even before it Swords Dances. Then it just goes wild, decimating anything in its path. Adamant does the job since it outspeeds anything slower than Scarfed Dugtrio. This is usually brought out late-game, to destroy the scraps. I'm considering giving it Air Balloon, but most of the time I get too nervous about taking hits so I just fire away with a +0 Life Orb boosted attack instead.
Move 1: Spikes
Move 2: Power Whip
Move 3: Leech Seed
Move 4: Protect
Nature: Relaxed
Item: Rocky Helmet
EVs: 252 HP, 48 Def, 208 Sp.Def
It was a hard toss-up between Ferrothorn, Forretress and Skarmory to add to my team, and I could be convinced to switch this out for either of the other two. Ferrothorn is good because it's very bulky on either side of the defensive field, and from personal experience it's been able to set up Spikes excellently, in conjunction with Tyranitar's Stealth Rock. Protect is good for stalling Leech Seed and Sandstorm damage. Honestly, despite protests that Leftovers serves it better, I LOVE Rocky Helmet. I'm a big fan of switching around a lot, tanking hits and letting residual damage add up. This combo deals 25% damage to all contact attacks, many of which Ferrothorn resists or at least can handle with its high defense. It makes a huge difference. I may switch out Power Whip for another supporting move; although this makes me severe Taunt-bait, Ferrothorn doesn't hit hard and I'd rather let the rest of my team hit harder by doing something to cripple my opponent.
Move 1: Reflect
Move 2: Light Screen
Move 3: Psychic
Move 4: Baton Pass
Nature: Timid
Item: Light Clay
EVs: 252 HP, 4 Def, 252 Speed
Espeon is one of the reasons this team has changed greatly. Thanks to it, I feel like I can be safer without Rapid Spin on Excadrill and I don't have to worry as much about Tyranitar or Ferrothorn wasting time with hazards since they often get bounced back. Oftentimes when a lot of people see a lead Tyranitar they immediately assume the Stealth Rock, so they either Taunt or let Stealth Rock be set up on both sides. Espeon can take great advantage of either of those, and then Dual Screen to cover frail attackers like Excadrill or Haxorus. Psychic is so I can hit back a little in case I have to, and good coverage against the Fighting types that my team doesn't like. Baton Pass is to escape Pursuit users, and also pass boosts from Scizor to Haxorus or Excadrill. I may replace Psychic with Wish, just for that little extra health. Obviously Espeon isn't scared of Taunt.
Move 1: Outrage
Move 2: Earthquake
Move 3: Brick Break
Move 4: Dual Chop
Nature: Adamant
Item: Choice Band
EVs: 4 HP, 252 Atk, 252 Speed
So. Haxorus. It comes in, and it destroys ALL. Anything is at least 2HKOed by the right move, and some thing even by the wrong move. That's why Outrage is safer here than on a lot of other Pokemon. No matter what, when in doubt I can just plow through. Thanks to Espeon I feel better about switching in and out a lot, and with its dual screens I feel safer keeping Haxorus in against an opponent who might survive a hit and hit back. Although Haxorus is capable of breaking through most things on its own, it actually serves as more of a pre-sweeper for Excadrill. Since most Steels can't stand against Earthquake and Brick Break (including those who Levitate, like Bronzong) and even walls like Gliscor and Hippowdon can't stand forever. Excadrill will have a clear path to victory.
Move 1: Swords Dance
Move 2: Agility
Move 3: Baton Pass
Move 4: Bullet Punch
Nature: Relaxed
Item: Iron Ball
EVs: 252 HP, 40 Atk, 216 SpD
This may look like a very strange Scizor, and I may switch it for a Poison Heal Gliscor who can do the same things. But it's not a sweeping Scizor, that much is obvious. Instead, I plan to exploit its decent defenses and good resistances to Baton Pass a powerful stat boost to someone who needs it. Swords Dance most often goes to Excadrill and Agility to Haxorus, though Haxorus with Swords Dance AND Choice Band kind of instakills all. It's not uncommon for me to get both boosts, or two of a kind, thanks to Scizor's defenses and Espeon's screens. Bullet Punch is there so I'm not total Taunt-bait and can strike back if I need to. The reason for the Iron Ball and Relaxed Nature is that I want to go after my opponent so my Baton Pass switchin can come in unscathed, maximising the time it can go nuts.
So that's it, as it stands now. I'm big on revisions, so give me all your criticisms. Hopefully I can iron out its flaws, though it's worked well for me so far.

move 1: Stealth Rock
move 2: Crunch
move 3: Pursuit
move 4: Superpower
item: Focus Sash
nature: Careful
evs: 252 HP / 4 Def / 252 SpD
This is usually my lead, and it's been doing the job well. Sandstorm is great to get going as soon as possible, to really make that residual damage count. With Focus Sash Tyranitar will be alive to restart weather later if necessary, and is guaranteed to at least set down Stealth Rock if I keep it in. There's not much that has to be said for Tyranitar, everyone knows what it does. This one's mainly defensive, to act as a backup special wall and do heavy damage with Superpower and Crunch's good coverage, and Pursuit picking off stronger but frail attackers. I may be convinced to switch this for Hippowdon, depending.

move 1: Swords Dance
move 2: Earthquake
move 3: Rock Slide
move 4: X-Scissor
item: Life Orb
ability: Sand Rush
nature: Adamant
evs: 4 HP / 252 Atk / 252 Spe
Again, this one requires little explanation. When you use a gamebreaking Sandstorm team, Excadrill is who you think of. Even if they stay in, Excadrill's high HP can take a lighter hit to Swords Dance, but thanks to Adamant and Life Orb it can deal heavy damage even before it Swords Dances. Then it just goes wild, decimating anything in its path. Adamant does the job since it outspeeds anything slower than Scarfed Dugtrio. This is usually brought out late-game, to destroy the scraps. I'm considering giving it Air Balloon, but most of the time I get too nervous about taking hits so I just fire away with a +0 Life Orb boosted attack instead.

Move 1: Spikes
Move 2: Power Whip
Move 3: Leech Seed
Move 4: Protect
Nature: Relaxed
Item: Rocky Helmet
EVs: 252 HP, 48 Def, 208 Sp.Def
It was a hard toss-up between Ferrothorn, Forretress and Skarmory to add to my team, and I could be convinced to switch this out for either of the other two. Ferrothorn is good because it's very bulky on either side of the defensive field, and from personal experience it's been able to set up Spikes excellently, in conjunction with Tyranitar's Stealth Rock. Protect is good for stalling Leech Seed and Sandstorm damage. Honestly, despite protests that Leftovers serves it better, I LOVE Rocky Helmet. I'm a big fan of switching around a lot, tanking hits and letting residual damage add up. This combo deals 25% damage to all contact attacks, many of which Ferrothorn resists or at least can handle with its high defense. It makes a huge difference. I may switch out Power Whip for another supporting move; although this makes me severe Taunt-bait, Ferrothorn doesn't hit hard and I'd rather let the rest of my team hit harder by doing something to cripple my opponent.

Move 1: Reflect
Move 2: Light Screen
Move 3: Psychic
Move 4: Baton Pass
Nature: Timid
Item: Light Clay
EVs: 252 HP, 4 Def, 252 Speed
Espeon is one of the reasons this team has changed greatly. Thanks to it, I feel like I can be safer without Rapid Spin on Excadrill and I don't have to worry as much about Tyranitar or Ferrothorn wasting time with hazards since they often get bounced back. Oftentimes when a lot of people see a lead Tyranitar they immediately assume the Stealth Rock, so they either Taunt or let Stealth Rock be set up on both sides. Espeon can take great advantage of either of those, and then Dual Screen to cover frail attackers like Excadrill or Haxorus. Psychic is so I can hit back a little in case I have to, and good coverage against the Fighting types that my team doesn't like. Baton Pass is to escape Pursuit users, and also pass boosts from Scizor to Haxorus or Excadrill. I may replace Psychic with Wish, just for that little extra health. Obviously Espeon isn't scared of Taunt.

Move 1: Outrage
Move 2: Earthquake
Move 3: Brick Break
Move 4: Dual Chop
Nature: Adamant
Item: Choice Band
EVs: 4 HP, 252 Atk, 252 Speed
So. Haxorus. It comes in, and it destroys ALL. Anything is at least 2HKOed by the right move, and some thing even by the wrong move. That's why Outrage is safer here than on a lot of other Pokemon. No matter what, when in doubt I can just plow through. Thanks to Espeon I feel better about switching in and out a lot, and with its dual screens I feel safer keeping Haxorus in against an opponent who might survive a hit and hit back. Although Haxorus is capable of breaking through most things on its own, it actually serves as more of a pre-sweeper for Excadrill. Since most Steels can't stand against Earthquake and Brick Break (including those who Levitate, like Bronzong) and even walls like Gliscor and Hippowdon can't stand forever. Excadrill will have a clear path to victory.

Move 1: Swords Dance
Move 2: Agility
Move 3: Baton Pass
Move 4: Bullet Punch
Nature: Relaxed
Item: Iron Ball
EVs: 252 HP, 40 Atk, 216 SpD
This may look like a very strange Scizor, and I may switch it for a Poison Heal Gliscor who can do the same things. But it's not a sweeping Scizor, that much is obvious. Instead, I plan to exploit its decent defenses and good resistances to Baton Pass a powerful stat boost to someone who needs it. Swords Dance most often goes to Excadrill and Agility to Haxorus, though Haxorus with Swords Dance AND Choice Band kind of instakills all. It's not uncommon for me to get both boosts, or two of a kind, thanks to Scizor's defenses and Espeon's screens. Bullet Punch is there so I'm not total Taunt-bait and can strike back if I need to. The reason for the Iron Ball and Relaxed Nature is that I want to go after my opponent so my Baton Pass switchin can come in unscathed, maximising the time it can go nuts.
So that's it, as it stands now. I'm big on revisions, so give me all your criticisms. Hopefully I can iron out its flaws, though it's worked well for me so far.