So basically I've liked trick room ever since my first battle on the gts when i got smoked by a Tr team that didn't seem very good at all. Since then Ive Made a few trick room teams, but this team has proven itself to be very good for me.
Team building process:
I started with dusclops as it is in my opinion the bulkiest trick room user in the game when holding eviolite, it can in most cases take two super effective hits and survive.
The next to be added was conkeldurr, my favourite trick room attacker, and the heart of this team. Although lacking fake out, with massive attack, and good bulk he can stick around for a long time.
With good defensive coverage against conkeldurrs two weaknesses as well as a very high attack stat of its own, metagross plays a similar role as conkeldurr, hard hitting pokemon, with a priority move, and some ability to last.
At this point my team is missing both a special attacker, and a resistance to fire types. Although not my first thought heatran has an an immunity to fire, great special attack and a good spread move.
With an obvious weakness to earthquake, it was obvious i needed something imune to it. I also needed something to be able to get rid ground types in general. Gyarados seemed to be the perfect answer with the ability to get rid of many of the counters to my team, as well as giving intimidate support.
Finally, the last spot on my team is currently inhabited by cresselia. Cresselia gives me a second tr user, as well as many options for support moves.
In place of cresselia i also tried porygon z, porygon2, chandelure, dragonite, jellicent, scrafty (who was pretty helpful), mamoswine (also very helpful), breloom, amoongus (really good but spore spamming got boring), and dragonite.
The Team
Dusclops @eviolite
Nature: sassy
Ability: pressure
EVs: 252Hp/176Def/80SpDef
0 Spd ivs
-trick room
-will-o-wisp
-pain split
-night shade
My primary trick room user. His main purpose is to set up tick room. After that he helps the team by will-o-wisping the other team, eating away at the health of the other team with night shade. Pain split lets dusclops last much longer while aslo dealing damage to the other team.
Conkeldurr @leftovers
Naturre: Brave
Ability: guts
Evs: Hp252/Atk252/SpDef4
0 Spd ivs
-drain punch
-ice punch
-mach punch
-protect
Like i said the heart of this team, i also often refer to him as the dragon slayer, because of his ability to one hit all dragons not running a defensive set (minus kingdra). With leftovers and drain punch he lasts ridiculously long. I prefer hp evs over an individual defensive stat as it will help defensively in all situations rather then from only physical or special. Mach punch is also helpful as it still deals a lot of damage to most pokes and has priority. I often lead with dusclops and conkeldurr and around one third of my battles with this team have been won with just conkeldurr and dusclops.
Gyarados @Life orb
Nature: brave
Ability: intimidate
Evs: Hp252/Atk152/SpDef100
0 Spd Ivs
-Waterfall
-stone edge
-taunt
-protect
waterfall is the stab move of choice, and along with stone edge gyarados gets good coverage. Gyarados is an especially good counter to chandelure who stops my conkeldurr very well. Taunt can be helpful in many situations, such as getting rid of spore leads who can destroy the team by sleeping the trick room lead. Brelloom is still a problem as it will out speed my gyarados when trick room is up.
With zero speed ivs and a hindering speed nature, gyarados is slow enough to be effective in trick room (this is also true for the rest of my pokemon on this team).
Heatran @air balloon
Nature: Quiet
Ability: flash fire
Evs: Hp252/SpAtk252/Def4
0 Spd Ivs
-Protect
-Heat wave
-Earth power
-Hidden power grass
Heatran has a very good special attack and is a good counter to apposing steel types, and fire types. Air ballon gives it an extra turn (generaly) to be safe from ground attacks. Dragons dont give my team much trouble, so i prefer hp grass over ice, as it can help get rid gastrodon and other water types if heatran gets a chance to attack them.
Metagross @lum berry
Nature: brave
Ability: clear body
Evs: Hp252/Atk252/Def4
0 Spd ivs
-Zen Headbutt
-Bullet Punch
-Protect
-Earthquake
A very good pokemon overall. Lum berry is needed to rid it of burn or sleep, which would both otherwise stop metagross quickly. Zen headbutt is a great stab move helpful for taking out fighting types, and earthquake is a good stab move. i chose priority over power in bullet punch as more often than not the extra power of meteor mash is not needed.
Cresselia @sitrus berry
Nature: Relaxed
Ability: levitate
Evs: Hp 252/Def252/SpDef4
0Spd ivs
-trick room
-light screen
-swagger
-shadow ball
Cresselia is often considered the best tr user but, i much prefer dusclops. The only situations i use cresselia is if the opponent has nothing to hurt it. However this is uncommon as she is such a common poke in vgc. And when i do use her i usually just fool around and swagger my metagross, and set up light screen. The reason i tought her shadow ball rather then a stab move was to be able to beat other cresselia. I am very willing to give her a different set or switch her out because sh is not essential to my team.
Threats to the team:
no pokemon can individually take out the team but there are some combinations that will hurt the team bad off the start.
Weavile+breloom: if the weavile fake outs my conkeldurr or whatever else i lead with and the breloom spores my dusclops turn 1, then the breloom can easily out speed or take any of my priority moves and spore my second pokemon turn 2. The only way i can counter this is with the lum berry on my metagross who will wake up from sleep and be able to 1 hit breloom with zen headbutt.
any two pokemon that have a powerful stab dark or ghost move: dusclops cannot take both a crunch from a ttar and a dark pulse from a hydregion. Although this lead is uncommon i have experienced it. Fortunately conkeldurr can 1-hit tyranitar with mach punch or 1-hit most other dark types.
other trick room teams: if the other team has slower pokes then mine i will generally try to counter this by using my trick room to keep the dimensions normal. Otherwise try to out power the other team with my strong attacking pokemon.
Taunt users: Taunt prevents me from setting up trick room yes, but when i start with my usual dusclops and conkeldurr all of the more common taunt users like tornadus and weavile are 1-hit by either of conkeldurrs attacks.
Current record on the gts is 86 wins and 4 losses, with no rage quits by me, and countless rage quits by others which would have otherwise lead to a win for me. I know that there are a lot of bad people on the gts, but it has still done well. I dont have pokemon online so i havent tried it there yet.
Team building process:
I started with dusclops as it is in my opinion the bulkiest trick room user in the game when holding eviolite, it can in most cases take two super effective hits and survive.
The next to be added was conkeldurr, my favourite trick room attacker, and the heart of this team. Although lacking fake out, with massive attack, and good bulk he can stick around for a long time.
With good defensive coverage against conkeldurrs two weaknesses as well as a very high attack stat of its own, metagross plays a similar role as conkeldurr, hard hitting pokemon, with a priority move, and some ability to last.
At this point my team is missing both a special attacker, and a resistance to fire types. Although not my first thought heatran has an an immunity to fire, great special attack and a good spread move.
With an obvious weakness to earthquake, it was obvious i needed something imune to it. I also needed something to be able to get rid ground types in general. Gyarados seemed to be the perfect answer with the ability to get rid of many of the counters to my team, as well as giving intimidate support.
Finally, the last spot on my team is currently inhabited by cresselia. Cresselia gives me a second tr user, as well as many options for support moves.
In place of cresselia i also tried porygon z, porygon2, chandelure, dragonite, jellicent, scrafty (who was pretty helpful), mamoswine (also very helpful), breloom, amoongus (really good but spore spamming got boring), and dragonite.
The Team
Dusclops @eviolite
Nature: sassy
Ability: pressure
EVs: 252Hp/176Def/80SpDef
0 Spd ivs
-trick room
-will-o-wisp
-pain split
-night shade
My primary trick room user. His main purpose is to set up tick room. After that he helps the team by will-o-wisping the other team, eating away at the health of the other team with night shade. Pain split lets dusclops last much longer while aslo dealing damage to the other team.
Conkeldurr @leftovers
Naturre: Brave
Ability: guts
Evs: Hp252/Atk252/SpDef4
0 Spd ivs
-drain punch
-ice punch
-mach punch
-protect
Like i said the heart of this team, i also often refer to him as the dragon slayer, because of his ability to one hit all dragons not running a defensive set (minus kingdra). With leftovers and drain punch he lasts ridiculously long. I prefer hp evs over an individual defensive stat as it will help defensively in all situations rather then from only physical or special. Mach punch is also helpful as it still deals a lot of damage to most pokes and has priority. I often lead with dusclops and conkeldurr and around one third of my battles with this team have been won with just conkeldurr and dusclops.
Gyarados @Life orb
Nature: brave
Ability: intimidate
Evs: Hp252/Atk152/SpDef100
0 Spd Ivs
-Waterfall
-stone edge
-taunt
-protect
waterfall is the stab move of choice, and along with stone edge gyarados gets good coverage. Gyarados is an especially good counter to chandelure who stops my conkeldurr very well. Taunt can be helpful in many situations, such as getting rid of spore leads who can destroy the team by sleeping the trick room lead. Brelloom is still a problem as it will out speed my gyarados when trick room is up.
With zero speed ivs and a hindering speed nature, gyarados is slow enough to be effective in trick room (this is also true for the rest of my pokemon on this team).
Heatran @air balloon
Nature: Quiet
Ability: flash fire
Evs: Hp252/SpAtk252/Def4
0 Spd Ivs
-Protect
-Heat wave
-Earth power
-Hidden power grass
Heatran has a very good special attack and is a good counter to apposing steel types, and fire types. Air ballon gives it an extra turn (generaly) to be safe from ground attacks. Dragons dont give my team much trouble, so i prefer hp grass over ice, as it can help get rid gastrodon and other water types if heatran gets a chance to attack them.
Metagross @lum berry
Nature: brave
Ability: clear body
Evs: Hp252/Atk252/Def4
0 Spd ivs
-Zen Headbutt
-Bullet Punch
-Protect
-Earthquake
A very good pokemon overall. Lum berry is needed to rid it of burn or sleep, which would both otherwise stop metagross quickly. Zen headbutt is a great stab move helpful for taking out fighting types, and earthquake is a good stab move. i chose priority over power in bullet punch as more often than not the extra power of meteor mash is not needed.
Cresselia @sitrus berry
Nature: Relaxed
Ability: levitate
Evs: Hp 252/Def252/SpDef4
0Spd ivs
-trick room
-light screen
-swagger
-shadow ball
Cresselia is often considered the best tr user but, i much prefer dusclops. The only situations i use cresselia is if the opponent has nothing to hurt it. However this is uncommon as she is such a common poke in vgc. And when i do use her i usually just fool around and swagger my metagross, and set up light screen. The reason i tought her shadow ball rather then a stab move was to be able to beat other cresselia. I am very willing to give her a different set or switch her out because sh is not essential to my team.
Threats to the team:
no pokemon can individually take out the team but there are some combinations that will hurt the team bad off the start.
Weavile+breloom: if the weavile fake outs my conkeldurr or whatever else i lead with and the breloom spores my dusclops turn 1, then the breloom can easily out speed or take any of my priority moves and spore my second pokemon turn 2. The only way i can counter this is with the lum berry on my metagross who will wake up from sleep and be able to 1 hit breloom with zen headbutt.
any two pokemon that have a powerful stab dark or ghost move: dusclops cannot take both a crunch from a ttar and a dark pulse from a hydregion. Although this lead is uncommon i have experienced it. Fortunately conkeldurr can 1-hit tyranitar with mach punch or 1-hit most other dark types.
other trick room teams: if the other team has slower pokes then mine i will generally try to counter this by using my trick room to keep the dimensions normal. Otherwise try to out power the other team with my strong attacking pokemon.
Taunt users: Taunt prevents me from setting up trick room yes, but when i start with my usual dusclops and conkeldurr all of the more common taunt users like tornadus and weavile are 1-hit by either of conkeldurrs attacks.
Current record on the gts is 86 wins and 4 losses, with no rage quits by me, and countless rage quits by others which would have otherwise lead to a win for me. I know that there are a lot of bad people on the gts, but it has still done well. I dont have pokemon online so i havent tried it there yet.