Resource DOU Effective Cores

xzern

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In teambuilding, a core is a batch of usually 2 or 3 mons which work together towards a certain goal. Post cores you've had success with here, along with a short explanation of why they work well together and some suggestions for potential teammates that would compliment the core.

This thread aims to compile cores in order to be a resource for teambuilding. Good cores will be edited into the below post - please note that this will be selective, a "good core" should be able to point to at least a handful of successful teams or repeated tour success. I'll split cores into Offensive, Defensive and Balanced categories. This is intended to be an ongoing and up to date list, so if you feel a core listed in the OP is no longer viable / worth listing, feel free to provide evidence of why you think this and it can be discussed between the community.

Things to remember when posting:
  • Include a concise description of how the core functions
  • Remember to post full importable sets
  • For spreads that deviate from 252/252, please explain what the EVs do
  • Avoid posting gimmicks
  • Please specify whether your core is meant to be offensive, defensive, balanced, etc
Here's a couple examples of good posts for reference:


Breloom @ Focus Sash
Ability: Technician
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Mach Punch
- Bullet Seed
- Spore
- Protect

Suicune @ Sitrus Berry
Ability: Pressure
EVs: 252 HP / 12 Def / 188 SpA / 56 Spe
Bold Nature
IVs: 0 Atk
- Hydro Pump
- Ice Beam
- Tailwind
- Protect

(Suicune lives +2 Adamant Mega Kang Return with Sitrus, outspeeds Deo-A in TW)

SuiLoom. This is one of my favorite offensive cores to use as it's pretty strong as a base while also being pretty splashable with other offensive mons such Mega Kangaskhan and Mega Metagross. It's also good for forming an offensive FWG which is always great no h8 m8.

Both sets are the standard, Sash Breloom and Tailwind Suicune. The biggest selling point of this core is that Breloom is pretty dangerous under Tailwind, as it can just Spore anything threatening as appropriate. There's synergy between the two too (wew); Breloom can take out opposing Waters like Rotom-W that Suicune can't touch (and Spore anything else really), and Suicune can take out Heatran, Talonflame, Landorus-T, and Shayming-Sky if in Tailwind, all threats to Breloom.

While the core does have problems with Amoonguss and Cresselia, they aren't really that much of a deal since it's pretty easy to add something like Hydreigon or Heatran since both appreciate the Tailwind Cune brings and have synergy with the core. One can also add strong physical attackers with the core such as Mega Kangaskhan, Mega Metagross, or Mega Diancie to pair with the core as they appreciate Cune's ability to destroy Lando-T and Breloom's ability to pressure and get set-up turns with Spore. This is just a great core and should be tried out imo :D

Cresselia @ Safety Goggles
Ability: Levitate
EVs: 248 HP / 252 Def / 8 SpD
Relaxed Nature
IVs: 0 Atk / 0 Spe
- Trick Room
- Calm Mind
- Psyshock
- Moonlight

Landorus-Therian @ Leftovers
Ability: Intimidate
EVs: 248 HP / 48 Atk / 132 Def / 80 SpD
Adamant Nature
- Protect
- Earthquake
- Stone Edge
- U-turn

The semi Trick Room core that never dies. Bulky Landorus-T is an excellent set, and it thrives in semi-TR with a slow U-turn, letting Cresselia set up Trick Room as soon as an attacker like Mega Abomasnow hits the field. Calm Mind TR Cresselia is a pretty standard and straightforward set - set Trick Room, clean up lategame with Calm Mind. Bulky Landorus-T weakens Kangaskhan (and switches in!) and many other physical attackers. With this EV spread, Landorus-T takes a Life Orb Draco Meteor from Hydreigon and an Adamant Mega Kangashan Return. Watch out for Bisharp, but never be worried about Talonflame again!
 
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Scizor Starter Pack 1 (Balanced)

Scizor @ Metal Coat
Ability: Technician
EVs: 248 HP / 48 Atk / 48 SpD / 164 Spe
Adamant Nature
- Bullet Punch
- Bug Bite
- Swords Dance
- Protect

Rillaboom @ Assault Vest
Ability: Grassy Surge
EVs: 200 HP / 252 Atk / 56 Spe
Adamant Nature
- Fake Out
- Grassy Glide
- Knock Off
- U-turn

Necrozma @ Safety Goggles
Ability: Prism Armor
EVs: 248 HP / 184 Def / 76 SpA
Bold Nature
IVs: 0 Atk
- Photon Geyser
- Earth Power
- Stealth Rock
- Protect
This is the core I built my Rain Balance sample team around. Scizor is very strong in this metagame, but it needs two crucial pieces of support:
  • a terrain setter, to offset Psychic Terrain which blocks Bullet Punch
  • a Stealth Rock setter, since Scizor is more easily able to hit offensive benchmarks when Stealth Rock damage is factored in
The terrain setter is a no-brainer pick; Rillaboom is the most viable terrain setter in this metagame not named Indeedee.

I went with Necrozma as a Stealth Rock setter because of its ability to deal with Amoonguss, but depending on your team any viable setter such as Tyranitar or Mew also works here. If you go with this core, you'll definitely want Incineroar checks which is why I added rain to this core on my sample team.

Below is a more in-depth explanation for the sets I run on this core:

  • Paired with Metal Coat, Scizor's 48 Atk always OHKOs Nasty Plot Togekiss after Stealth Rock damage at +0
  • 164 Spe outruns uninvested Rillabooms so you can hit them with a Bug Bite before they U-turn out
  • Dump rest of EVs into HP, then SpD for maximum bulk

  • Rillaboom's Grassy Surge clears opposing Psychic Terrain so Scizor can freely fire off Bullet Punch
  • 56 Spe ensures you will always outspeed Modest Sylveon as well as Azumarill, thereby hitting the latter with Grassy Glide before it can use Aqua Jet
  • Dump rest of EVs into Atk, then HP


  • Given spread always survives a Life Orb-boosted Wicked Blow from Jolly Urshifu
  • Dump rest of EVs into SpA




Scizor Starter Pack 2 (Balanced)

Scizor @ Metal Coat
Ability: Technician
EVs: 248 HP / 48 Atk / 48 SpD / 164 Spe
Adamant Nature
- Bullet Punch
- Bug Bite
- Swords Dance
- Protect

Rillaboom @ Assault Vest
Ability: Grassy Surge
EVs: 200 HP / 252 Atk / 56 Spe
Adamant Nature
- Fake Out
- Grassy Glide
- Knock Off
- U-turn

Tyranitar @ Chople Berry
Ability: Sand Stream
EVs: 220 HP / 252 Atk / 36 Spe
Adamant Nature
- Stealth Rock
- Rock Slide
- Lash Out
- Protect
An alternate Scizor core that does pretty much the same things as the first one: use Rillaboom to disrupt terrains and Tyranitar to set rocks. Tyranitar is even slightly better for Scizor in some respects, as sand applies further chip damage to help Scizor meet offensive benchmarks.

For this core, you'll want to be mindful of Amoonguss, as this core doesn't have a solid check to it yet.

Below is a more in-depth explanation for the sets I run on this core:

  • Paired with Metal Coat, Scizor's 48 Atk always OHKOs Nasty Plot Togekiss after Stealth Rock damage at +0
  • 164 Spe outruns uninvested Rillabooms so you can hit them with a Bug Bite before they U-turn out
  • Dump rest of EVs into HP, then SpD for maximum bulk

  • Rillaboom's Grassy Surge clears opposing Psychic Terrain so Scizor can freely fire off Bullet Punch
  • 56 Spe ensures you will always outspeed Modest Sylveon as well as Azumarill, thereby hitting the latter with Grassy Glide before it can use Aqua Jet
  • Dump rest of EVs into Atk, then HP


  • Mostly just the standard Tyranitar bulky attacker spread.
  • Lash Out > Crunch, because the 5 BP drop is worth doing double damage when Intimidated.
  • I chose to run Chople Berry to live a Jolly Life Orb Urshifu Close Combat at -1, but this is highly situational. Depending on your team, feel free to run a different item - this just seemed more sensible than Lum or Sitrus in this meta.
 
Incineroar icon
Blastoise icon
Rillaboom icon

fire-water-grass synergy is already good and then combine it with triple fake out and pivot moves it goes from good to top tier. all three of the mons are are pretty splash-able on their own imo but works even better together. fake out is one of the best moves in the tier as its let your partner set up (komm-o) or do massive damage (ursifu) as well as taking away momentum. when their usefullness wears out, simply pivot out.

incineroar: flare blitz does solid damage and useful for hitting boomer and amoonguss. knock off is a great move to remove items and even gets the stab boost which helps take down psyspam. sitrus berry is an option instead of goggles. my spread lets it take -1 lo zer plasma fists into cc and 167 spe outspeeds 0 invested base 65s (goth).
blastoise: generally controls the flow of the game. use fo+follow me to enable set up sweepers and flip turn out once the job is done. i like using haze in the fourth spot to get rid of boosts from komm-o or scizor but protect is good too. my spread lets it take lo boost zer plasma fists and 207 spe outspeeds 0 invested base 85s (boomer) so you can get the faster fake out.
rillaboom: grassy glide does solid damage in grassy terrain and even serves as priority once fo is used. knock off, once again, is incredibly useful. the spread avoids the 2hko from +2 komm-o clanging scales and 209 spe speedcreeps other rillaboom.
Incineroar @ Safety Goggles
Ability: Intimidate
EVs: 252 HP / 80 Def / 132 SpD / 44 Spe
Careful Nature
IVs: 0 SpA
- Fake Out
- Flare Blitz
- Knock Off
- Parting Shot

Blastoise @ Sitrus Berry
Ability: Torrent
EVs: 252 HP / 132 Def / 64 SpD / 60 Spe
Impish Nature
IVs: 0 SpA
- Fake Out
- Flip Turn
- Follow Me
- Haze

Rillaboom @ Assault Vest
Ability: Grassy Surge
EVs: 252 HP / 128 Def / 116 SpD / 12 Spe
Impish Nature
IVs: 0 SpA
- Fake Out
- Grassy Glide
- Knock Off
- U-turn
 

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Incineroar icon
Blastoise icon
Rillaboom icon

fire-water-grass synergy is already good and then combine it with triple fake out and pivot moves it goes from good to top tier. all three of the mons are are pretty splash-able on their own imo but works even better together. fake out is one of the best moves in the tier as its let your partner set up (komm-o) or do massive damage (ursifu) as well as taking away momentum. when their usefullness wears out, simply pivot out.

incineroar: flare blitz does solid damage and useful for hitting boomer and amoonguss. knock off is a great move to remove items and even gets the stab boost which helps take down psyspam. sitrus berry is an option instead of goggles. my spread lets it take -1 lo zer plasma fists into cc and 167 spe outspeeds 0 invested base 65s (goth).
blastoise: generally controls the flow of the game. use fo+follow me to enable set up sweepers and flip turn out once the job is done. i like using haze in the fourth spot to get rid of boosts from komm-o or scizor but protect is good too. my spread lets it take lo boost zer plasma fists and 207 spe outspeeds 0 invested base 85s (boomer) so you can get the faster fake out.
rillaboom: grassy glide does solid damage in grassy terrain and even serves as priority once fo is used. knock off, once again, is incredibly useful. the spread avoids the 2hko from +2 komm-o clanging scales and 209 spe speedcreeps other rillaboom.
Incineroar @ Safety Goggles
Ability: Intimidate
EVs: 252 HP / 80 Def / 132 SpD / 44 Spe
Careful Nature
IVs: 0 SpA
- Fake Out
- Flare Blitz
- Knock Off
- Parting Shot

Blastoise @ Sitrus Berry
Ability: Torrent
EVs: 252 HP / 132 Def / 64 SpD / 60 Spe
Impish Nature
IVs: 0 SpA
- Fake Out
- Flip Turn
- Follow Me
- Haze

Rillaboom @ Assault Vest
Ability: Grassy Surge
EVs: 252 HP / 128 Def / 116 SpD / 12 Spe
Impish Nature
IVs: 0 SpA
- Fake Out
- Grassy Glide
- Knock Off
- U-turn
I feel like this can honestly be distilled even further to just Rillaboom and Blastoise. The two form a very effective pivoting/support pair, with both being able to cycle Fake Outs and U-turn/Flip Turn out of poor matchups. While Pure Water + Pure Grass don't provide a huge amount of resistances, the two don't share any weaknesses and it's hard to pin down one of them, let alone both. There's a laundry list of Pokemon you can pair with the two to form an effective backbone; Incineroar, Weezing-G, Volcarona, Chansey, and more all form 3 Pokemon cores with varying degrees of support, defense, and offense.
 
I feel like this can honestly be distilled even further to just Rillaboom and Blastoise. The two form a very effective pivoting/support pair, with both being able to cycle Fake Outs and U-turn/Flip Turn out of poor matchups. While Pure Water + Pure Grass don't provide a huge amount of resistances, the two don't share any weaknesses and it's hard to pin down one of them, let alone both. There's a laundry list of Pokemon you can pair with the two to form an effective backbone; Incineroar, Weezing-G, Volcarona, Chansey, and more all form 3 Pokemon cores with varying degrees of support, defense, and offense.
Agreed with this. Rillaboom and Blastoise are the two best pokemon in the tier that honestly should be on borderline every team while Incineroar is nowhere near that impact. xzern if you could change the OP to just Blastoise + Rillaboom I think that could be helpful.

Anways, another core !!!!!!!!!!


Chansey @ Eviolite
Ability: Natural Cure
EVs: 4 HP / 252 Def / 252 SpD
Bold Nature
IVs: 0 Atk / 0 SpA
- Stealth Rock
- Seismic Toss
- Toxic
- Soft-Boiled

Weezing-Galar @ Sitrus Berry
Ability: Neutralizing Gas
EVs: 252 HP / 76 Def / 12 SpA / 128 SpD / 40 Spe
Bold Nature
IVs: 0 Atk
- Sludge Bomb
- Strange Steam
- Toxic Spikes
- Protect
Defensive Core! Both Chansey and Weezing-Galar are incredible pokemon in the current metagame, and can be even better when paired together. Chansey's biggest threat by far is Urshifu, while Weezing-G is one of the best Urshifu switch-ins. It avoids the 2HKO and can OHKO it back with Dazzling Gleam. In return, Chansey helps wall PsySpam teams that threthen Weezing-G. Slapping the two of them on your team means you've already taken care of a Stealth Rock / Toxic Spikes user, and a Toxic Spikes Remover, as well as matching up well against Urshifu, Sylveon, Kommo-o, PsySpam, and Rain. Both of these pokemon are very splash-able and should be considered when building a team.

The Chansey spread is pretty simple. A deviation you can make is taking some EVs out of Special Defense and adding them to Speed to outrun other Chansey. Weezing-G's spread allows it to avoid the 2HKO from Life Orb Zeraora, while guaranteeing the OHKO on Urshifu with Dazzling Gleam. Like Chansey, you can remove some EVs from Special Defense and put them in Speed to outpace opposing Weezing-G.
 
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