Desert concert

The Rock band of Tyranitar and the boys
This is my favourite team of all I've ever made (because it have my favourite Pokémon lol).

Tyranitar (M) @ Leftovers
Traits: Sand Stream
EVs: 4 HP / 252 Atk / 252 Spd
Adamant Nature (+Atk, -SAtk)
- Stone Edge
- Crunch
- Superpower
- Dragon Dance
My favourite Pokémon and the lead vocal. It Dragon Dance set may not be outstanding in this generation because of the newcomer Conkeldurr's Mach Punch. Even though, it can still be super dangerous and it has swept one team 6-0 before. But it somehow still weak against Toxicroak.

Reuniclus (M) @ Life Orb
Traits: Magic Guard
EVs: 252 HP / 156 Def / 100 SAtk 
IVs: 0 Spd
Quiet Nature (+SAtk, -Spd)
- Psychic
- Recover
- Shadow Ball
- Focus Blast
Tyranitar's best buds. He can be a real pain in the ass of fighting type Pokémon. With the huge ass of Conkeldurr, it's even more painful. It can take Mach Punch all day, only scared of Focus Punch or Payback. Minimum IVs is used to outslow Conkeldurr, leaving Pay Back at 50 Base Power. Given SAtk to deal acceptable damage to Conkeldurr, while the remainings to give him some bulk.

Lucario (M) @ Life Orb
Traits: Inner Focus
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature (+Spd, -SAtk)
- Swords Dance
- Close Combat
- Crunch
- ExtremeSpeed
Original set for Lucario. After a cool dance move: Swords Dance, ExtremeSpeed destroy almost everything faster than Lucario. Crunch mainly used to kill the Ghost since super effective Crunch still weaker than Close Combat. Most Jellicent is OHKOed after Swords Dance, except for the max Def positive nature take only 92% but that variant is really rare. Despite that, Lucario take everything on the dance floor or when it come to blue.

Gastrodon (M) @ Leftovers
Traits: Storm Drain
EVs: 252 HP / 100 SAtk / 156 SDef
Calm Nature (+SDef, -Atk)
- Earth Power
- Scald
- Toxic
- Recover
The one and only made-to-counter Rotom-W. He can absorb away its mighty Hydro Pump. +1 SAtk packed with reliable recovery make him hold on longer. Toxic to nail Rotom-W if it stayed in, while Scald deal some nice damage and ignite opponent with burning spirit of Rock. With Sandstorm damage, opponent will be easily wear down to KO range. 

Ferrothorn (M) @ Leftovers
Traits: Iron Barbs
EVs: 252 HP / 88 Def / 168 SDef
Impish Nature (+Def, -SAtk)
- Leech Seed
- Stealth Rock
- Power Whip
- Protect
SR set up and a very durable wall. With Life Orb recoil and/or Toxic and Burn damage, opposing will be quickly worn out.  100 SDef give the durian durability for taking hit of Rotom-W, then Leech Seed on the switch. This is my main answer to Politoed, because he take pitful damage from Focus Blast and doesn't fear burn because of Leech Seed. Because Ferrothorn Atk is not high at the first place, the drop is not noticable. This heavy metal punks is extremely annoying (as any punk)

Landorus (M) @ Choice Scarf
Traits: Sand Rush
EVs: 4 HP / 252 Atk / 252 Spd
Naive Nature (+Atk, -SAtk)
- Earthquake
- Stone Edge
- Hidden Power [Ice]
- U-Turn
An offensive powerhouse in Sandstorm, Landorus is the wrath of desert. Earthquake destroy anything doesn't immune to it, while dent a deep hole into things that resist it. Stone Edge for coverage, while boosted during Sandstorm. HP Ice bring destruction to Gliscor, who otherwise will completly tank Stone Edge all day and immune to Earthquake. U-Turn give me some scouting ability, while dealing some nice damage. This dude really rockin' with back up by Sandstorm.

Beat to the Rock beat!!!

I tried so hard to make it fun
But in the end it doesn't even matter...

a solid sandstorm team. try giving ferro gyro ball over power whip though, because ferros terrible speed is going to make that move insanely powerful. if you do replace make ferros nature brave for max damage

Timid does Gastrodon no favors at all because it's very slow. It's better off with a bulky spread, with this set:
-Earth Power/Earthquake
-Ice Beam/Scald
-Toxic
-Recover
Nature: Calm/Sassy
EVs: 252 HP/4 SAtk/252 SDef
Item: Leftovers
Ability: Storm Drain

Sure, that set loses out on HP Grass, but this Gastrodon can wear Rotom-W down with Toxic.