Preface: For anyone who doesn't know what the OU theorymon project you can find the thread hereIt not really important, but I am #1 on the theorymon ladder currently while this may seem impressive its not a very large ladder.

This team while in some ways intends to preview how the changes in theorymon change the dynamics of the OU ladder, while not really using too many theorymons. This will be more clear as I go through the teambuilding process and the team in general, as well as the reason this team is called fairy busters.
I'm going to make a custom threat list here for all the new OU theorymon pokemon which will help you understand the changes without having to read the entire thread. The ones in blue are set-up fodder for Scizor the ones in red are ones I have a little trouble with.
-Mega Ampharos, Regenerator
Specially Defensive Pivot
Offensive Pivot
Dual Screens Pivot
-Mismagius, Fairy Typing
NP Taunt
NP Will-o-Wisp
NP Trickspecs (Haven't encountered yet except for my own)
-Metagross, Bulletproof
Choice Band
Assault Vest
Stealth Rock
-Empoleon, Roost
Hazard Support
- Altaria, Fairy Typing
Zard counter
- Cresselia, Fairy Typing
Calm Mind
Defensive Wall
Rest-Talk Psycho Shift
- Scrafty, Parting Shot
Choice Scarf Pivot
Physically Defensive Pivot
This team began with the two theorymons that looked like fun to use Mismagius and Metagross. I gave missy specs to be a powerful wallbreaker and Metagross got a vest to assist in tanking special hits.
I then added Mega Scizor as my win condition because I felt the new fairy set-up fodder added in theorymon indirectly buffed Scizor and other steel types a whole lot.
Since I was using Scizor I needed something to tank fire hits and I am experienced using specially defensive Heatran so I chose him. Landorous-I was added to protect Heatran from Ground type moves (especially Mold Breaker Excadrill) and to put specially offensive pressure on the opponent along with Missy.
I then grabbed Scarf Garchomp to be my fast Revenge killer.
After getting beaten by Brave Bird Spam and continually being annoyed by Stealth Rock I dropped Landorous-I for Physcially Defensive Zapdos with defog.
Scarf Garchomp STABs were not very spammable because of the many fairies on the ladder, and he just kept dying too early so I swapped him out for Scarf Excadrill.
Scarf Excadrill was cut because of his low base power and because he stacked weaknesses on my team.
I'm going to make a custom threat list here for all the new OU theorymon pokemon which will help you understand the changes without having to read the entire thread. The ones in blue are set-up fodder for Scizor the ones in red are ones I have a little trouble with.

Specially Defensive Pivot
Offensive Pivot
Dual Screens Pivot

NP Taunt
NP Will-o-Wisp
NP Trickspecs (Haven't encountered yet except for my own)

Choice Band
Assault Vest
Stealth Rock

Hazard Support

Zard counter

Calm Mind
Defensive Wall
Rest-Talk Psycho Shift

Choice Scarf Pivot
Physically Defensive Pivot


This team began with the two theorymons that looked like fun to use Mismagius and Metagross. I gave missy specs to be a powerful wallbreaker and Metagross got a vest to assist in tanking special hits.



I then added Mega Scizor as my win condition because I felt the new fairy set-up fodder added in theorymon indirectly buffed Scizor and other steel types a whole lot.





Since I was using Scizor I needed something to tank fire hits and I am experienced using specially defensive Heatran so I chose him. Landorous-I was added to protect Heatran from Ground type moves (especially Mold Breaker Excadrill) and to put specially offensive pressure on the opponent along with Missy.






I then grabbed Scarf Garchomp to be my fast Revenge killer.






After getting beaten by Brave Bird Spam and continually being annoyed by Stealth Rock I dropped Landorous-I for Physcially Defensive Zapdos with defog.






Scarf Garchomp STABs were not very spammable because of the many fairies on the ladder, and he just kept dying too early so I swapped him out for Scarf Excadrill.






Scarf Excadrill was cut because of his low base power and because he stacked weaknesses on my team.
The Team
Scizor @ Scizorite | Technician
EVs: 248 HP | 56 Atk | 204 SDef
Adamant Nature
Swords Dance | Roost | Bullet Punch | Thief
The best way to start off is with my win condition who also happens to be a very threating and capable pivot on my team. Thief is great neutral coverages and with makes Scizor my best answer to Aegislash with some good prediction (as it always is with Aegislash). Bullet Punch wrecks teams that rely on Cresselia as their physcial wall. This is a bulky Mega Scizor spread that makes Scizor just as capable at tanking hits as it is at dishing them out. The most annoying theorymon check to Scizor is Intimidate Parting Shot Scrafty who has to be slowly worn down before I can sweep with Scizor.

Scizor @ Scizorite | Technician
EVs: 248 HP | 56 Atk | 204 SDef
Adamant Nature
Swords Dance | Roost | Bullet Punch | Thief
The best way to start off is with my win condition who also happens to be a very threating and capable pivot on my team. Thief is great neutral coverages and with makes Scizor my best answer to Aegislash with some good prediction (as it always is with Aegislash). Bullet Punch wrecks teams that rely on Cresselia as their physcial wall. This is a bulky Mega Scizor spread that makes Scizor just as capable at tanking hits as it is at dishing them out. The most annoying theorymon check to Scizor is Intimidate Parting Shot Scrafty who has to be slowly worn down before I can sweep with Scizor.

Metagross @ Assault Vest | Bulletproof
EVs: 252 Atk | 194 HP | 64 Spd
Adamant Nature
Meteor Mash | Bullet Punch | Earthquake | Ice Punch
Metagross' new ability has made him one of the best attackers and utility checks in the metagame. It is also hilarious how Metagross hard-counters one of the most prominent other theorymons: Mismagius with bulletproof. Assault Vest makes Metagross my strongest counter to Mega Ampharos. Metagross without a real ghost weakness is also great Landoge bait so I ditched Zen Headbutt for Ice Punch to cripple/KO landoge on the switch-in. The 64 speed is to outspeed uninvested Heatran so I can check it with an EQ. Bullet Punch is always nice for revenge killing and can come in handy to kill a weakened Mismagius before it can land a Will-O-Wisp.

Mismagius @ Choice Specs | Levitate
EVs: 252 Spd | 252 SAtk | 4 SDef
Timid Nature | 0 Atk IVs
Dazzling Gleam | Shadow Ball | Trick | Nasty Plot
Mismagius is by far the most offensive and threatening of all the theorymons in the ladder. Fairy-typing gives Missy 4 resistances and great dual stabs. This makes Mismagius very easy to switch in and a great counter to Dragon Dancers such as Zygarde and Dragonite. As the ladder devoloped the revelation that Metagross was a hard counter to Mismagius developed so Trick comes in very handy to completely cripple Metagross on the switch-in. This is actually an old little cup set that uses trick specs to both cripple your best counter on the switch-in then nasty plot boost to sweep your opponents now crippled team.

Zapdos @ Leftovers | Pressure
EVs: 248 HP | 240 Def | 20 Spd
Bold Nature| IVs: 0 Atk
Defog | Volt Switch | Heat Wave | Roost
Zapdos is so underrated both in Theorymon OU and in OU in general. In most ways Zapdos outclasses Rotom-W with its superior speed tier, access to defog and reliable recovery. I make it a habit to have either a resistance to earthquake or a flying type even if I have a levitating mon just to counter scarf Excadrill. Zapdos counters most physical threats in the tier especially the many Steel types and Fighting Types. Sometimes I drop defog for toxic it is nice to wear down parting shot-voltturn teams and my team isn't really bothered too much with Stealth Rock. Zapdos helps me achieve my win condition by countering most of the counters to scizor.

Heatran @ Leftovers | Flash Fire
EVs: 248 SDef | 248 HP | 12 Spd
Calm Nature | IVs: 0 Atk
Stealth Rock | Lava Plume | Toxic | Earth Power
Heatran lends lots of utility to the team both setting stealth rock and spreading hazards. The spread is pretty simple with 12 points of speed creep to outspeed opposing Heatran and KO them with Earth Power otherwise I have lots of trouble with them. Heatran also hard counters lots of powerful attackers such as opposing Scizor and Mega Mawile. Heatran is also important in dealing with Theorymons as I dislike switching Metagross into Mismagius without first knowing if it carries Will-o-Wisp so Heatran is my usual switch-in to Missy. Heatran also deserves to be metioned as the only Pokemon who currently 4x resists fairy type.

Landorus-Therian @ Choice Scarf | Intimidate
EVs: 252 Spd | 252 Atk | 4 HP
Jolly Nature
Earthquake | Stone Edge | U-turn | Knock Off
Landorous is my Scarfed Revenge Killer as a replacement for Excadrill. Landoge hits harder making him able to OHKO more bulky threats such as Thundurus. While Landorus doesn't have the advantage of Mold Breaker Earthquakes his movepool especially U-Turn helps my team defensively. Landoge can sometimes form a nice volt-turn core with Zapdos to wear down mons such as Slowbro. I haven't had too many matches with Lando TBH so theres not much else I can think of to say right now.
Previous Team Members
The reason Excadrill was gotten rid of was because he is outclassed by Landorous-T as he is less useful defensively and less threatening offensively therefore completely outclassed

The reason Excadrill was gotten rid of was because he is outclassed by Landorous-T as he is less useful defensively and less threatening offensively therefore completely outclassed
Thanks for Reading this! Feel free to give me any feedback or to use the team as an introduction to the Theorymon ladder (though you should make your own). Here is the importable if you wanna try it out!
Metagross @ Assault Vest
Ability: Bulletproof
EVs: 252 Atk / 194 HP / 64 Spd
Adamant Nature
- Meteor Mash
- Bullet Punch
- Earthquake
- Ice Punch
Mismagius @ Choice Specs
Ability: Levitate
EVs: 252 Spd / 252 SAtk / 4 SDef
Timid Nature
IVs: 0 Atk
- Dazzling Gleam
- Shadow Ball
- Trick
- Nasty Plot
Scizor @ Scizorite
Ability: Technician
EVs: 248 HP / 56 Atk / 204 SDef
Adamant Nature
- Swords Dance
- Roost
- Bullet Punch
- Thief
Zapdos @ Leftovers
Ability: Pressure
EVs: 248 HP / 240 Def / 20 Spd
Bold Nature
IVs: 0 Atk
- Defog
- Volt Switch
- Heat Wave
- Roost
Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 SDef / 248 HP / 4 SAtk
Calm Nature
IVs: 0 Atk
- Stealth Rock
- Lava Plume
- Toxic
- Earth Power
Excadrill @ Choice Scarf
Ability: Mold Breaker
EVs: 252 Spd / 252 Atk / 4 HP
Jolly Nature
- Earthquake
- Iron Head
- Rapid Spin
- Rock Slide
Ability: Bulletproof
EVs: 252 Atk / 194 HP / 64 Spd
Adamant Nature
- Meteor Mash
- Bullet Punch
- Earthquake
- Ice Punch
Mismagius @ Choice Specs
Ability: Levitate
EVs: 252 Spd / 252 SAtk / 4 SDef
Timid Nature
IVs: 0 Atk
- Dazzling Gleam
- Shadow Ball
- Trick
- Nasty Plot
Scizor @ Scizorite
Ability: Technician
EVs: 248 HP / 56 Atk / 204 SDef
Adamant Nature
- Swords Dance
- Roost
- Bullet Punch
- Thief
Zapdos @ Leftovers
Ability: Pressure
EVs: 248 HP / 240 Def / 20 Spd
Bold Nature
IVs: 0 Atk
- Defog
- Volt Switch
- Heat Wave
- Roost
Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 SDef / 248 HP / 4 SAtk
Calm Nature
IVs: 0 Atk
- Stealth Rock
- Lava Plume
- Toxic
- Earth Power
Excadrill @ Choice Scarf
Ability: Mold Breaker
EVs: 252 Spd / 252 Atk / 4 HP
Jolly Nature
- Earthquake
- Iron Head
- Rapid Spin
- Rock Slide
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