update: this team is outdated and retired. thanks!
Introduction
With the start of round 2 for the RU tier and the long-awaited Shuckle suspect which will end soon (in a few hours I reckon) so I felt like I should post this team before that happens, and before the verdict (which is probably ban) is announced, since this team was designed in a Shuckle-centralized metagame with the intention of beating Shuckle Offense and also the stall teams which saw a spike in usage. This team kinda pretty much sorta got me reqs until I got bored when I was around 2200 COIL and was on a tilt and started using Shuckle Offense to finish reqs quickly lol. So yeah, it's a pretty good team that worked well in the metagame but it wasn't -exceptionally- good as I haven't really spent a lot of time thinking this as much as I have spent on my previous team/rmt, and I quickly built this.
Onto teambuilding.. As I said, this team was built with the intention of beating two common archetypes: Shuckle Offense, and what rose to counter Shuckle Offense which is Stall and the rise of some other mons like Fletchinder and Moltres/Mismagius. With that in mind, I started with an offensive core which consisted of Fletchinder + Swords Dance Zoroark with Grass Knot, which aimed for Zoroark to disguise as Fletchinder and lure in some of its checks like Rhyperior and beat them, opening up for a Fletchinder sweep later on, while also accomplishing a sweep on its own/softening up walls, and it also does a good job against stall because nothing likes a +2 Knock Off. On the other hand, Fletchinder's Acrobatics was used as a fail-safe option against offensive teams, as it easily picks off Pokemon like Yanmega, Sharpedo, Virizion, etc. It's also a pretty damn good check to Escavalier, and with that in mind, and the fact that I wanted this team to beat Stall, I decided to add Calm Mind Reuniclus. Calm Mind Reuniclus allowed me to set up against Stall provided Pokemon like Whirlwind Drapion are out of the way and then start punching holes. Then, as I previously stated I wanted the team to beat Shuckle Offense and so far I only had Fletchinder which was really good against that archetype, and CM Reuniclus which didn't do too bad against it either. I proceeded to add Choice Scarf Modest Rotom-C which is literally hell to face for Shuckle Offense teams since it outspeeds everything and easily 2HKOs everything with Thunderbolt. I then needed a way to get rid of entry hazards and specifically Stealth Rock since they're hell for Fletchinder, and I also needed something to glue up some weaknesses, and so I added Defog + Stealth Rock Gligar to cover up threats like Hitmonlee and other physical attackers. Looking at the team, I also needed something else to cover up some weakneses against special attackers, and I thought of nothing other than Assault Vest Slowking, which is a fantastic pivot that can easily come in on Pokemon such as Moltres and Delphox and take them out.
Now, enough talk, and here's the actual team:






In Depth

NOW YOU LOSE (Fletchinder)
Ability: Gale Wings
EVs: 160 HP / 252 Atk / 96 Spe
Adamant Nature
- Acrobatics
- Swords Dance
- Roost
- Will-O-Wisp
EVs are standard, taken straight from the analysis. The speed allows me to outspeed minimum speed Drapion, while the HP investment allows Fletchinder to avoid the 2HKO from non-CB Escavalier's Knock Off, and max attack ofc. The name is an inside joke started by user: Don Honchkrorleone and user: Molk.

Zoroark @ Life Orb
Ability: Illusion
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Swords Dance
- Knock Off
- Sucker Punch
- Grass Knot / Low Kick
+2 252 Atk Life Orb Zoroark Low Kick (120 BP) vs. 252 HP / 0 Def Solid Rock Rhyperior: 351-413 (80.8 - 95.1%) -- guaranteed 2HKO after Leftovers recovery
4 SpA Life Orb Zoroark Grass Knot (120 BP) vs. 252 HP / 244+ SpD Solid Rock Rhyperior: 413-487 (95.1 - 112.2%) -- 68.8% chance to OHKO
+2 252 Atk Life Orb Zoroark Low Kick (120 BP) vs. 252 HP / 0 Def Registeel: 411-486 (112.9 - 133.5%) -- guaranteed OHKO

Reuniclus @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Calm Mind
- Recover
- Psyshock
- Shadow Ball / Focus Blast

Gligar @ Eviolite
Ability: Hyper Cutter
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Defog
- Stealth Rock
- Earthquake
- Roost

Rotom-Mow @ Choice Scarf
Ability: Levitate
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Volt Switch
- Leaf Storm
- Thunderbolt
- Trick

Slowking @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 252 SpA / 8 Spe
Modest Nature
IVs: 0 Atk
- Scald
- Psyshock
- Fire Blast
- Dragon Tail
Part of the balance core along with Gligar, Slowking allows me to keep Pokemon like Delphox and Moltres, along with most other special attackers, in check thanks to its naturally big special bulk , along with an Assault Vest and Regenerator as the ability. Since it already has enough bulk to take on special attackers, the rest of the EVs are better used to maximize attacking power rather than bulk, and for that reason its Modest max SpA. Scald is obligatory Water-type STAB, and the burns it causes are often good and clutch. Psyshock is secondary STAB, and Fire Blast is handy coverage for Escavalier, Mega Abomasnow, and all the good stuff. Dragon Tail is used as some sort of pHazing, but its mostly filler. It helps spread passive damage through it and Stealth Rock I guess.
So yeah, that's the team. It's balance that isn't exceptionally good but it was fairly decent and got me through most of the reqs which was a horrible experience, and I also got a good ladder rank in the process (like #3 or something) for what its worth. I would post a threatlist, but I don't remember coming against anything that /really/ felt like it was that threatening to the team, or I did and I'm not remembering it, w/e. I'll leave that to you to determine what threatens the team :]
Team name comes from the song I was listening to at the time, and it also perfectly fit the team and the fact that it was supposed to counter Shuckle centralization, with Shuckle being the "exit strategy of a wrecking ball" since it's about to leave the tier... geddit? yes?
song:
NOW YOU LOSE (Fletchinder)
Ability: Gale Wings
EVs: 160 HP / 252 Atk / 96 Spe
Adamant Nature
- Acrobatics
- Swords Dance
- Roost
- Will-O-Wisp
Reuniclus @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Calm Mind
- Recover
- Psyshock
- Shadow Ball
Gligar @ Eviolite
Ability: Hyper Cutter
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Defog
- Stealth Rock
- Earthquake
- Roost
Zoroark @ Life Orb
Ability: Illusion
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Swords Dance
- Knock Off
- Sucker Punch
- Grass Knot
Rotom-Mow @ Choice Scarf
Ability: Levitate
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Volt Switch
- Leaf Storm
- Thunderbolt
- Trick
Slowking @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 252 SpA / 8 Spe
Modest Nature
IVs: 0 Atk
- Scald
- Psyshock
- Fire Blast
- Dragon Tail
Ability: Gale Wings
EVs: 160 HP / 252 Atk / 96 Spe
Adamant Nature
- Acrobatics
- Swords Dance
- Roost
- Will-O-Wisp
Reuniclus @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Calm Mind
- Recover
- Psyshock
- Shadow Ball
Gligar @ Eviolite
Ability: Hyper Cutter
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Defog
- Stealth Rock
- Earthquake
- Roost
Zoroark @ Life Orb
Ability: Illusion
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Swords Dance
- Knock Off
- Sucker Punch
- Grass Knot
Rotom-Mow @ Choice Scarf
Ability: Levitate
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Volt Switch
- Leaf Storm
- Thunderbolt
- Trick
Slowking @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 252 SpA / 8 Spe
Modest Nature
IVs: 0 Atk
- Scald
- Psyshock
- Fire Blast
- Dragon Tail
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