The cores

This mainly to discuss and share various cores you have used in teams.

Core is simply a group of Pokémon that work really well together, and are major part of teams. Almost all teams have a core, even if you didn't intentionally make one. There are multiple different styles of cores, but most can be categorized as an Offensive, Defensive, or Balanced core. There are also cores that are based of the type chart, like FWG cores and my personal favorite Water/Dragon/Steel (WDS) which isn't that well known.

I'll edit this post as more cores are posted here, and I'll add new categories for cores if needed to. If you're posting a core for a specific format, please say it, since not all cores work that well in other formats.

Offensive Cores

Spoiler

Mega Sharpedo + Salamence
Magnezone + Landorus-Therian + Azumarill

Defensive Cores

Spoiler

Skarmory + Chansey
Amoonguss + Slowbro + Heatran
Heatran + Skarmory + Sylveon

Balanced Cores

Spoiler

Latias + Mega Scizor + Clefable

 

[3D='sharpedo-mega'] [3D='salamence']
Mega Sharpedo & Salamence.

Spoiler

Sharpedo @ Sharpedonite
Ability: Speed Boost
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Protect
- Crunch
- Ice Fang
- Waterfall

Salamence @ Choice Scarf
Ability: Moxie
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Dragon Claw / Iron Head
- Earthquake
- Outrage / Iron Head
- Fire Blast

Both Mega Sharpedo and Scarf Salamence can be huge threats to teams that don't have bulkier Fairy types to check them. Idea is simple. You try to deal as much damage as possible with the other, and clean with the other one. They both pack a punch, so it won't that hard to bunch holes to offensive and balanced teams. Sharpedo can easily get at least 1 Speed boost before Mega Evolving, and you can also play around with the move Protect, but it's usually quite risky, due to Sharpedo's low defenses. If the the opponents teams lack a fairy type, you can easily send Salamence in and start using Dragon Claw/Outrage depending on how many of your opponents pokemons have fainted and/or are on low health.

As a I mentioned before, this core is weak to bulkier Fairy types, such as Sylveon and Azumarill, and it can have hard time dealing with Physically bulky Pokémon, like Bulky Gyarados. Thunder Wave and Burns can also cripple both of these sweepers, so a Heal Bell/Aromatherapy user is highly recommended. Hazards can allow them to get the some OHKOs or 2HKOs, while opponents hazard can take a significant chunk of your sweepers health bar.

 

I'm also someone who doesn't intentionally build cores, however, my better teams usually have one, which I discover only after few games.

Now to explain another core.

[3D='skarmory'] [3D='chansey']

Spoiler

Skarmory @ Leftovers
Ability: Sturdy
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Roost
- Defog / Spikes
- Brave Bird
- Whirlwind / Spikes

Chansey @ Eviolite
Ability: Natural Cure
EVs: 4 HP / 252 Def / 252 SpD
Bold Nature
- Toxic / Thunder Wave
- Soft-Boiled / Wish
- Seismic Toss
- Heal Bell / Protect

One of the most well know cores, and also quite simple. Skarmory takes Physical Attacks aimed at Chansey, while Chansey takes Special Attacks aimed at Skarmory. This core is mostly weak to strong mixed sweepers, such as Infernape, and Eelektross.