I have been testing this team out on Doubles (showdown, too) and it has done great for me
Here is the main sweeper:
Linoone
Ability I randomly choose since it is not worth anything
@ Air Balloon
252 Atk 252 Spe 4HP; Adamant
-ExtremeSpeed
-Protect
-Rock Smash/ Shadow Claw (change it depending on the threats)
-Belly Drum
This is the terror in the team. Once it gets set up, it cant be stopped. Once I show my other mons, you will understand why it is more useful than going with Linoone solo, and it holding an Air Balloon.
Now for its perfect partner:
Amoongus
@ Focus Sash
Effect Spore
252 HP 200 Def 56 SpDef
Sassy Nature
-Foul Play
-Rage Powder
-Clear Smog
-Protect
This Pokemon is a HUGE help to Linoone. First use Rage Powder to attract all attacks to it, then let Linoone set up and continue sponging hits. it resists Fighting -type attacks, which are always going to be targeted at Linoone first, and also takes a moderate amount of damage from Earthquake, which Linoone is immune to because of the Air Balloon. Protect is for scouting in conjunction with Linoone and his Protect. The rest of the moves are filler; Foul Play can help against high Attack base-stat Pokemon that could otherwise OHKO Linoone or after Linoone is KOd. And Clear Smog is for Bulk Up and Calm Mind sweepers that would threaten the entire team, but the move is rarely used. And Focus Sash is only used for surviving more than 1 hit before the moves are targeted back to Linoone.
Next Teammate
Dragonite
@ Leftovers
Multiscale
244 HP 12 Atk 252 Spe
Adamant
-Roost
-Dragon Claw
-Dragon Dance
-Earthquake
This Dragonite set is not much unique except for Earthquake instead of Fire Punch. The main reason for having Earthquake is that it effects all Pokemon on the field, and my main sweeper (Linoone) is immune to it as well. If Linoone faints before you send Dragonite out, try using Dragon Claw instead of Earthquake unless you send or have out my next teammate already
Here is the main sweeper:
Linoone

Ability I randomly choose since it is not worth anything
@ Air Balloon
252 Atk 252 Spe 4HP; Adamant
-ExtremeSpeed
-Protect
-Rock Smash/ Shadow Claw (change it depending on the threats)
-Belly Drum
This is the terror in the team. Once it gets set up, it cant be stopped. Once I show my other mons, you will understand why it is more useful than going with Linoone solo, and it holding an Air Balloon.
Now for its perfect partner:
Amoongus

@ Focus Sash
Effect Spore
252 HP 200 Def 56 SpDef
Sassy Nature
-Foul Play
-Rage Powder
-Clear Smog
-Protect
This Pokemon is a HUGE help to Linoone. First use Rage Powder to attract all attacks to it, then let Linoone set up and continue sponging hits. it resists Fighting -type attacks, which are always going to be targeted at Linoone first, and also takes a moderate amount of damage from Earthquake, which Linoone is immune to because of the Air Balloon. Protect is for scouting in conjunction with Linoone and his Protect. The rest of the moves are filler; Foul Play can help against high Attack base-stat Pokemon that could otherwise OHKO Linoone or after Linoone is KOd. And Clear Smog is for Bulk Up and Calm Mind sweepers that would threaten the entire team, but the move is rarely used. And Focus Sash is only used for surviving more than 1 hit before the moves are targeted back to Linoone.
Next Teammate
Dragonite

@ Leftovers
Multiscale
244 HP 12 Atk 252 Spe
Adamant
-Roost
-Dragon Claw
-Dragon Dance
-Earthquake
This Dragonite set is not much unique except for Earthquake instead of Fire Punch. The main reason for having Earthquake is that it effects all Pokemon on the field, and my main sweeper (Linoone) is immune to it as well. If Linoone faints before you send Dragonite out, try using Dragon Claw instead of Earthquake unless you send or have out my next teammate already