I've successfully won quite a few matches with this new team. I've been walled in once and now I feel that it is very strong. It works very well for me. And it's not your usual Trick Room Team.
252 HP/ 252 Sp Attack/ 4 Def
Chandelure is my Trick Roomer that makes a lot of people afraid with his stats. He has forced switches and can at least get one TR down being saved by Focus Sash. People have a tendency to take him out asap for fear of sweeping later on. But, that is not his job. And Taunt is to stop the infernal Blissey and forcing it either switch out or waste seismic tosses on Chandelure.
Trick Room Sweeper:
100 HP/ 100 Def/ 252 Sp Attack/ 56 SpD
Reuniclus is my Bulky Sweeper in Trick Room. It can take a strong hit, Trick Room and recover and sweep. A trend that I have noticed is all of the specially defensive pokes this gen, like Blissey. So, I've decided to run Psyshock over Psychic due to the lack of pure defensive walls this gen. Shadow Ball is for Ghost types.
Trick Roomer Status Inducer/Screener:
252 HP/ 4 Attack/ 252 Sp Defense
Bronzong is my special wall and status inducer on my team. He can easily take blows and can set up Light Screen and spread Hypnosis around. Gyro Ball is for STAB.
Trick Room Regenerator/Physical Wall:
252 HP/ 252 Def/ 4 Attack
Tangrowth is my phsyical wall that I like to think of as an anti-Chlorophyll Venusaur. While Venusaur is a tank under the sun, Tangrowth is a tank in Trick Room. With Light Screen in play, it can take a hard blow and attack fire types with earthquake. It can hit with STAB PowerWhip on water, ground and rock types. It is also here to hit Tyranitar harder hence physical attack vs. special HP recovery attack. Leech Seed and Regenerator are for massive HP recovery.
Now up until this point, you have seen my stallers and trick room sweeper. this is the point when my pseudo attackers revealed.
Toxic Blocker/Powerhouse and TR/nonTR attacker:
252 HP/ 252 Attack/ 4 Def
This set is meant to function well in Trick room or nonTR. With a 70 base speed, its middle of the line and with access to Sucker Punch will always get the drop on the opponent, in either case. Bisharp's job is to absorb the hard blows ie Dark, Ghost, Dragon, Poison, Toxic anything that would force many switches on my team. I had to deal with a Krookodile that was locked into Outrage and while he kept going, I kept powering up with Swords Dance to immense levels and unleashed super Sucker Punches with Dark Gem.
Now for my super Pseudo Attacker that will function good as a status inducer and staller in Trick Room and sweeper in regular. And this has worked 75% of the time and I don't care if you don't believe me because it has.
252 HP/ 116 Attack/ 100 Def/ 40 Sp Defense
I know you're thinking of him as the joke Regi where even Regice has more use than he does. However, I've realized in Trick Room, he is one of the slowest pokes. Put it in this perspective, Bronzong is 33 base speed. Gigalith is 25. Reuniclus is 30. Conkeldurr is 45. And with slow start, he is 50. And with his bulk HP and "speed" in Trick Room can switch in (Turn 1) and lets say a Ghost ball meant for Reuniclus or Chandelure, both very tempting. He can set up a Sub which usually takes 2 hits sometimes to do. And he can recover HP with leftovers and spread Thunderwave. and once Trick Room ends, he speed jumps to 100 and he is ready to start sweeping. And he will Outspeed the foes he paralyzed. I've swept with Return and had no problem. I encountered a Steel types, fire Punched it. And with Light Screen, it can handle it a special attack no problem.
While 3 are OU, the others are very tough when paired up with those 3. The three OU are my bait for my 3 underdogs to come up and bare their fangs. Who would think that Regi is my sweeper when there's 3 much better pokes? And people don't see this coming and they can get very easily swept. The rest of the team is really there as backups and to take care of those that get in Regi's way. ie Terakion (Reuniclus), Ghost Types(Reuniclus and Chandelure) Rock Types (Bisharp)
And I know people will bring up the Pranksters, but keep in mind who would keep a Whimsicott in play when Chandelure is roaming around. Thundurus without HP Ice is blocked by specially defensive Tangrowth. If you paralyze it, you make it faster and able to shoot off Sleep Powders faster for Regi to sub in and sweep. Tornadus could come in with Hurricane and do massive damage, but keep in mind that Light Screen will be up and Bisharp that resists flying will Sucker Punch through Thundurus and Tornadus. Rain Dance teams help me a lot by weakening a weakness, fire. and making Tangrowth that much harder to KO.
Drought teams will make Chandelure my sweeper. I can tell you right now that no Chlorophyll Venusaur in his right mind would take the chance of trying to put Chandelure to sleep and risking that miss than trying to KO it with Earthquake or try to boost with Growth.