Garchomp + Excadrill. Nuff Said

[De7u]

Introduction
What is there to say? What I did is add a Garchomp and an Excadrill,
chucked some sand in, and added some broken pokes and here's the
outcome. It got me to the second page of the DW OU ladder, by the way.
(Excuse my terribad English grammer)

Process:

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Well, I started out with Garchomp and Excadrill because they're
the motivation for this team. Both work superbly under a sandstorm. Is
there anything else to say?

Then I figured, 'how can I run a combo of Excadrill and Garchomp if I
don't have permanent sandstorm? I'll better slap on a specially defensive
Tyranitar to take hits better than those two.'Thunder Wave to slow down
any scarfers threatening Garchomp, as he does not have lighting-quick
speed like Excadrill. Dragon Tail to switch out any pokemon who set up,
as they seem to be popular in DW OU. Crunch to not be completely shut
down by Taunt and Stealth Rock because it's great.

Now, these three have immense trouble tackling Skarmory. It's immune
to Garchomp and Excadrill's power STAB, takes Outrage like nothing, and
can whirlwind them out if they reach a dangerous level with Swords Dance.
I had to add a Chandelure, which can trap and fry Skarmory. It also takes
care of Technician Breloom, who's Mach Punch OHKOs Excadrill. It also
fits nicely as a spinblocker, because my next pokemon sets up a lot of
entry hazards...

Spotlight, Deoxys. I needed a fast lead who does good against all pokemon.
With max HP, it doesn't get destroyed by moves, like they normally do.
Choice Scarfed pokemon can easily check Garchomp lacking a Substitute
, so it needs Knock Off. Spikes is also helpful. Deoxys' Speed Forme fits the bill, so it's in.

Genesect, with great coverage moves, great stats, great ability, great typing,
is in. Nuff said.

Deoxys-S@ Focus Sash

Ability / Trait : Pressure
EVs : 252 HP, 252 Speed, 6 Special Attack.
Timid Nature (+Speed, -Attack)
- Taunt
- Psychic
- Knock Off
- Spikes

My lead, Deoxys-S. What this Deoxys does is if it sees a bulky lead, it Tricks.
If not, it uses Spikes until it dies. It knocks off Choice Scarf's off of leads,
which makes revenge killing with Chandelure easier. It has Psychic over
Psycho Boost so it isn't set-up fodder against Pokemon with Substitute.

Tyranitar@ Leftovers

Ability : Trait : Sand Stream
EVs : 252 HP, 252 Special Defence, 6 Defence.
Careful Nature (+Special Defence, -Special Attack)
- Crunch
- Stealth Rock
- Thunder Wave
- Dragon Tail

Tyranitar > Hippowdon. Tyranitar with maxed out Special Defence takes
anything thrown at it. Politoed's Specs Hydro Pump? No problem. 60%
damage. Chandelure's Specs Hidden Power Fighting? No problem. 59%
damage. Bulky Tyranitar walls a lot of the DW metagame, and that can
be useful when the rest of the team can't take specific moves.

Excadrill@ Air Balloon

Ability / Trait : Sand Rush
EVs: 6 HP, 252 Attack, 252 Speed.
Adamant Nature (+Attack, -Special Attack)
- Swords Dance
- Rock Slide
- X-Scissor
- Earthquake

What sent Excadrill to Ubers is that if you don't have a Skarmory or a
Gliscor on your team, it will wreck. Now it returns to Dream World OU
to .. wreck some more. I gave it Air Balloon so it can switch into Pokemon
locked onto Ground moves, or even Volt Switch (Zapdos) and Poison moves.
Switching into choiced pokemon is easier when I have Deoxys using
Trick. And with one SD, it's GG.

Garchomp@ Leftovers

Ability / Trait : Sand Veil
EVs : 188 HP, 252 Speed, 68 Attack.
Jolly Nature (+Speed, -Special Attack)
- Substitute
- Outrage
- Earthquake
- Swords Dance

Garchomp is there to either clean up after Excadrill, or sweep on its own.
given HP EVs gives a sweet 404 HP, allowing Garchomp to set up on users
of Night Shade and Seismic Toss (Though Garchomp must be wary of
Deoxys-D's Taunt). I gave it max speed to allow it to set up a sub
quicker, along with the Jolly Nature. Then it's just waiting for them to
miss a move, set up and sweep.

Genesect@ Choice Scarf

Ability / Trait : Download
EVs : 6 HP, 252 Special Attack, 252 Speed.
Modest Nature (+Special Attack, -Attack)
- Bug Buzz
- Flamethrower
- Ice Beam
- Thunderbolt

In my opinion, this is the best Genesect set. It has superb coverage, and
Download boosts my Special Attack once in a while so other pokemon
that may switch in on a predicted switch might not take it well at all.
Bug Buzz, at +1 Special Attack, deals loads of damage to anything that
doesn't resist Bug. Flamethrower for Steel types, and then you have your
Thunderbolt + Ice Beam coverage moves. GOML, Scizor.

Chandelure@ Choice Scarf

Ability / Trait : Shadow Tag
EVs : 6 HP, 252 Special Attack, 252 Speed.
Modest Nature (+Special Attack, - Attack)
- Shadow Ball
- Psychic
- Hidden Power [Fighting]
- Fire Blast

Well, Chandelure is on my team so it can trap and kill Skarmory, who stops
Excadrill and Garchomp cold. It can take whatever they can throw at it
and Whirlwind them out. It is also there to trap users of Mach Punch, such
as Breloom and Conkeldurr. It's third benefit is to kill Politoed, Ninetales, etc.
This finishes weather wars really quickly. It, coupled with Choice Specs, takes
a giant dump on everything it can hit.

Now that I think about it, this team is pretty weak to water...

 

[Kidogo]

Well, this is nothing if not a typical sand team, although there are some unusual sets (deoxys-s). Some comments:

Whatever the cool value of it, deoxys-s with a choice scarf is just silly--it has THE HIGHEST base speed in the game. If you want to cripple bulky leads, just put taunt in. Spikes is good, psychic is okay (although I prefer psycho boost since deoxys is mostly hit and run). Knock off again I would get rid of. Yeah, it has some gimmicky use, but there are way better moves to replace it. I would suggest either stealth rock or super power to replace it--you already have rocks, so superpower is a very good fit as it provides good coverage with psycho boost and nails ttar for the OHKO with a little Atk investment. So the set I'm suggesting is something like: 12 Atk (guarantees OHKO on max HP ttar) / 244 SpA / 252 Spe Naive with Spikes / Taunt / Psycho Boost / Superpower. Item can be life orb, lefties, focus sash, whatever you want really. This set is a nice combo of offense and support and retains a lot of power while still laying spikes very effectively.

Ttar looks good overall, I might suggest chople berry > lefties since you look pretty fighting weak, but that's PP. I do question the lack of protect though--chandy is #2 most common poke right now (I believe), and pursuit is extremely valuable accordingly. It could fit in over dtail--tyranitar isn't a great phazer anyway and can use the slot way better.

Exca looks good, standard set. I like frustration > x-scissor, for gliscor and rotom, but again PP.

Chomp is fine, consider a more offensive spread--yeah, 101 HP subs are nice, but not much uses seismic toss in this meta and he really misses the power--a simple 4 / 252 / 252 would work. Also, dclaw is good > outrage since it's way more reliable and gives you something to hit flyers without locking yourself in. Outrage has its merits though.

Genesect is cool, although the standard set has u-turn > bug buzz. Bug buzz doesn't really give a ton of coverage alongside genesect's other attacks, and u-turn is very useful for evading chandelure and hitting ttar on his weaker side, while also being an incredible move and allowing genesect to function as an excellent scout.

Chandelure is a very good fit on this team. I would suggest changing the item to choice scarf though--without it, it is easily outrun by many of its potential targets and is thus unable to trap them (for example, gliscor can easily outspeed and OHKO specs chandelure). Scarf helps with this, however. And although it doesn't have the sheer power of specs, it is still very powerful. Moveset is fine, although psychic is not a great fit--energy ball can be useful for bulky waters and politoed and hp [fighting] could be replaced by hp [ice]--you don't have really any trouble with ttar with this team. Lastly, overheat is a good option > fire blast, as chandelure will rarely be staying in for more than one turn and overheat has better power and accuracy. Flamethrower is also a more reliable option as well. If you switch to scarf, modest is usually the better option for nature.

Over all, this is a very nice team, although it seems like it could be walled fairly easily by something like skarmory or bronzong, since many carry shed shell. Furthermore, this team is very weak to hazards, meaning chandelure and genesect, the only pokemon that can harm the physical walls that give this team trouble, will be worn down very quickly. For this reason I would suggest putting rapid spin > x-scissor on excadrill, as this would alleviate some of your hazards weakness. Another thing you could try is mixed chomp--a moveset of substitute / fire blast / earthquake / dragon claw has been very effective for me, and does a good job of catching counters like skarm off-guard. Other than that, it's a good team, hope the comments helped!