permission granted by Spirit
OP edited a bit from the base made by Arikado and gorex
Taken over from gorex
Welcome to the RU cores for ORAS thread! This is the thread where your favorite cores or cores that are proven effective are discussed. You may also discuss the viability, possible changes, or teammates to cores posted by other members in this thread.
Effective cores are an integral part of teambuilding, and in competitive play as a whole, and any good team or player utilizes cores either by accident or purposefully. Defensive cores rely on covering many a threats with their defensive synergy via virtue of typing and common threats within the cores while also offering valuable team support, either through means of recovery passing or status healing, so that the core is still useful even when walled by others.
Here is an example of a good defensive core, written by myself.
On the other hand, offensive cores enjoy having similar attacking types between its members, but offensive synergy is of the utmost importance. Whether it be that one member of the core attracts Pokemon that another member can switch into and force out, one member luring and weakening the checks and counters of another, or one member outright able to be beat the Pokemon that the other cant, these aforementioned characteristics are wanted for a good offensive core.
Here is an example of a good offensive core provided by EonX:
Finally, there are mixed or balanced cores, as well as support and pivoting cores, which blend in into offensive and defensive cores. Support or pivoting elements in cores aim to either provide easier switch-in and set up chances to offensive Pokemon, or help to wall and stall out the opponent in the case of defensive cores.
Here is an example of a good balance core, provided by -kal-:
The aim of this thread is to help people who are new to RU, or even experienced players, find cores that they enjoy using, so that they can build their teams and use them effectively on the ladder. Therefore, I hope that with every post made, you can respect what this thread is meant for and NOT post shit cores or cores with bad movesets, examples being Amnesia+Iron Defense Registeel. On seeing these type of movesets, your post will be deleted.
It would be nice if you can post cores that have been tested and be ready to back up your core and reason with people who question the viability of your core. If you could provide good teammates for the core, that could be nice, but it is definitely optional. If you can, provide replays of the specific core in action, whether it walls a certain of a well-built team (defensive), breaks a hole into the opposition (offensive), or show clear synergy (balance).
This is just a notice to all the people who posted their cores in their past thread: If you have any movesets to change due to the tier changes and some mons getting banned, please PM on here or in the PS! RU, LC, OldGens, or CT rooms (where I go under the same name), and I will make the appropriate changes
I will be reserving the subsequent posts for Defensive, Offensive, and Balance cores. Feel free to post after I reserve those 3 posts. You may also use whatever sprites float your boat, as I like pokesho sprites a lot. But I'll probably change them to xyani for consistency's sake. Also, all the old cores posted in the last thread that do not have banned mons will be updated in those aforementioned posts.
Happy posting!
OP edited a bit from the base made by Arikado and gorex
Taken over from gorex
Welcome to the RU cores for ORAS thread! This is the thread where your favorite cores or cores that are proven effective are discussed. You may also discuss the viability, possible changes, or teammates to cores posted by other members in this thread.
Effective cores are an integral part of teambuilding, and in competitive play as a whole, and any good team or player utilizes cores either by accident or purposefully. Defensive cores rely on covering many a threats with their defensive synergy via virtue of typing and common threats within the cores while also offering valuable team support, either through means of recovery passing or status healing, so that the core is still useful even when walled by others.
Here is an example of a good defensive core, written by myself.


This is a very standard, well known core, and for good reason. Steelix-Mega and Alomomola handle each others checks very well. Things that can threaten Steelix-Mega like strong fighting types such as Emboar, Hitmonlee, and Scrafty, waters such as Seismitoad and Sharpedo, and finally strong fire types such as Mega Camerupt are all checked by Alomomola. Furthermore, the strong electric types that threaten Alomomola such as Jolteon as well as Lum set up sweepers such as Drapion or Durant are usually handled by Steelix-Mega. Another pivotal part of this core is the ability for Alomomola to pass wishes to Steelix to allow it to maintain its health throughout the match. Another great part of this core is that it sets up hazards as well, however, generally stall wpuld like a secondary form of hazard setting, i.e Toxic Spikes or regular spikes. This core struggles with grass types such as Virizion and Tangrowth as well as other stall breakers. For this reason it is suggested that Amoonguss be run in partnership with these two. Amoonguss hanfles almpst all grass types and can spore a lot other treatening sweepers. Amoongus also forms a secondary regenerator core between itself and Alomomola if used. Another helpful partner to this core would be a heal beller, as neither mon enjoys being statused. A final thought for a partner would be a pursuiting dark type such as Spiritomb as Meloetta and Sigilyph are tremendous threats to the core and even suggested teammates. Enjoy the core :).
Secondary description by -kal-
This core is a bread-and-butter core of bulky Water + Steel that is really popular in this meta. Its definitely a really solid core as it is able to cover the majority of the tier. Alomomola handles Fire-types such as Emboar for Steelix with ease while also being able to replenish it with Wish. Ot can also cripple Flygon and Rhyperior with a Scald burn who would otherwise be able to dent Steelix with their attacks. On the other hand, Mega Steelix dispatches Electric-types with ease and can phaze out setup sweepers such as Sub+CM Meloetta which Alomomola is very passive against due to its non-existent offensive presence. Mega Steelix also absorbs Toxic and Thunder Waves from the opposing team that Alomomola abhors as it can get worn down easily. Definitely has some weaknesses such as to Tangrowth, Virizion, and Sigilyph as they cannot beat them one-on-one as well as a vulnerability to status and hazard stack.
Secondary description by -kal-
This core is a bread-and-butter core of bulky Water + Steel that is really popular in this meta. Its definitely a really solid core as it is able to cover the majority of the tier. Alomomola handles Fire-types such as Emboar for Steelix with ease while also being able to replenish it with Wish. Ot can also cripple Flygon and Rhyperior with a Scald burn who would otherwise be able to dent Steelix with their attacks. On the other hand, Mega Steelix dispatches Electric-types with ease and can phaze out setup sweepers such as Sub+CM Meloetta which Alomomola is very passive against due to its non-existent offensive presence. Mega Steelix also absorbs Toxic and Thunder Waves from the opposing team that Alomomola abhors as it can get worn down easily. Definitely has some weaknesses such as to Tangrowth, Virizion, and Sigilyph as they cannot beat them one-on-one as well as a vulnerability to status and hazard stack.
Steelix @ Steelixite
Ability: Sturdy
EVs: 248 HP / 64 Atk / 112 SpD / 84 Spe
Adamant Nature
- Stealth Rock
- Heavy Slam
- Earthquake
- Stone Edge / Roar
Alomomola @ Leftovers
Ability: Regenerator
EVs: 120 HP / 240 Def / 136 SpD / 12 Spe
Bold Nature
- Wish
- Protect
- Scald
- Toxic
Ability: Sturdy
EVs: 248 HP / 64 Atk / 112 SpD / 84 Spe
Adamant Nature
- Stealth Rock
- Heavy Slam
- Earthquake
- Stone Edge / Roar
Alomomola @ Leftovers
Ability: Regenerator
EVs: 120 HP / 240 Def / 136 SpD / 12 Spe
Bold Nature
- Wish
- Protect
- Scald
- Toxic
On the other hand, offensive cores enjoy having similar attacking types between its members, but offensive synergy is of the utmost importance. Whether it be that one member of the core attracts Pokemon that another member can switch into and force out, one member luring and weakening the checks and counters of another, or one member outright able to be beat the Pokemon that the other cant, these aforementioned characteristics are wanted for a good offensive core.
Here is an example of a good offensive core provided by EonX:


Before I talk about this core, I would like to make mention that really any Scarf Fighting-type that struggles with Ghosts and fat Psychics can work really well with this Houndoom set. I just chose Medicham as I feel it's the easiest Scarf Fighting-type to use with Houndoom. Anyway, this core is really cool. A mixed set is easily the best set for Houndoom in the current meta imo with all the Fighting-types running around. It may seem strange to run 3 physical moves on Houndoom when its Special Attack is so good, but I just feel Houndoom's physical Dark STABs are so much more useful in the current meta. Between Sucker Punch and Pursuit, Houndoom is able to beat most Psychics and Ghosts with the heavy Attack investment. Heck, even some offensive mons such as Flygon and Durant take a pretty hefty amount from Sucker Punch. Fire Blast beats what it's supposed to and Crunch is useful for when you just need to hit with a Dark STAB. You may wonder why I opt for Crunch over Dark Pulse, but with the heavy Attack investment, I just feel Crunch is the better option. It gets better damage on most targets. So how do you set up Pursuit traps to help your cleaner win the game? Have your cleaner come in early and lure with Baton Pass of course! Seriously, Baton Pass is amazing on Scarf Medicham so long as you can follow it up with a Pursuit trapper. The idea is to bring Medicham in on an early revenge kill (or some slower mon it threatens out) and simply Baton Pass if the opponent has a Ghost or Psychic out back. From there, it's an easy switch to Houndoom and a Pursuit that either KOs or puts the mon in question in range of one of Medicham's STABs later. You really don't need anything other than HJK and Zen Headbutt for offense on Scarf Medicham, so Trick fills the other slot as a way to give it some added utility vs. defensive teams.
Houndoom (F) @ Life Orb
Ability: Flash Fire
EVs: 216 Atk / 40 SpA / 252 Spe
Hasty Nature
- Sucker Punch
- Pursuit
- Fire Blast
- Crunch
Medicham (M) @ Choice Scarf
Ability: Pure Power
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- High Jump Kick
- Zen Headbutt
- Trick
- Baton Pass
Ability: Flash Fire
EVs: 216 Atk / 40 SpA / 252 Spe
Hasty Nature
- Sucker Punch
- Pursuit
- Fire Blast
- Crunch
Medicham (M) @ Choice Scarf
Ability: Pure Power
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- High Jump Kick
- Zen Headbutt
- Trick
- Baton Pass
Finally, there are mixed or balanced cores, as well as support and pivoting cores, which blend in into offensive and defensive cores. Support or pivoting elements in cores aim to either provide easier switch-in and set up chances to offensive Pokemon, or help to wall and stall out the opponent in the case of defensive cores.
Here is an example of a good balance core, provided by -kal-:


Sigilyph and Gurdurr have really great synergy with each other atm. Gurdurr is able to take on Dark-types such as Sneasel and Scrafty by killing them or setting up Bulk Ups that can greatly trouble Sigilyph and also heavily pressures Flygon and Mega Glalie, both of which are able to outspeed Sigilyph and OHKO it. Having Knock Off on Gurdurr is also great as it weakens Jellicent to put it in range of Sigilyph's Attacks. In return, Sigilyph is able to easily handle a slightly weakened Aromatisse and Tangrowth which Gurdurr cannot do much against. Sigilyph can also outspeed and kill off Poison-types in general like Amoonguss and Golbat so that Gurdurr is able to sweep Late-game. This core also greatly discourages the use of Status-inflicting moves (bar Spore or Thunder Wave) as Gurdurr would get a Guts boost while Sigilyph would have an immunity to Sleep and Paralysis which makes it more threatening. This core definitely has some weaknesses. One in particular is this core's Meloetta and Fletchinder weakness though adding a Spdef Rhyperior should somewhat mitigate these problems as long as Meloetta does not pack Grass Knot.
Sigilyph @ Life Orb
Ability: Magic Guard
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Psychic
- Heat Wave
- Air Slash
- Roost
Gurdurr @ Eviolite
Ability: Guts
EVs: 252 HP / 208 Atk / 48 Def
Adamant Nature
- Bulk Up
- Drain Punch
- Mach Punch
- Knock Off
Ability: Magic Guard
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Psychic
- Heat Wave
- Air Slash
- Roost
Gurdurr @ Eviolite
Ability: Guts
EVs: 252 HP / 208 Atk / 48 Def
Adamant Nature
- Bulk Up
- Drain Punch
- Mach Punch
- Knock Off
The aim of this thread is to help people who are new to RU, or even experienced players, find cores that they enjoy using, so that they can build their teams and use them effectively on the ladder. Therefore, I hope that with every post made, you can respect what this thread is meant for and NOT post shit cores or cores with bad movesets, examples being Amnesia+Iron Defense Registeel. On seeing these type of movesets, your post will be deleted.
It would be nice if you can post cores that have been tested and be ready to back up your core and reason with people who question the viability of your core. If you could provide good teammates for the core, that could be nice, but it is definitely optional. If you can, provide replays of the specific core in action, whether it walls a certain of a well-built team (defensive), breaks a hole into the opposition (offensive), or show clear synergy (balance).
This is just a notice to all the people who posted their cores in their past thread: If you have any movesets to change due to the tier changes and some mons getting banned, please PM on here or in the PS! RU, LC, OldGens, or CT rooms (where I go under the same name), and I will make the appropriate changes
I will be reserving the subsequent posts for Defensive, Offensive, and Balance cores. Feel free to post after I reserve those 3 posts. You may also use whatever sprites float your boat, as I like pokesho sprites a lot. But I'll probably change them to xyani for consistency's sake. Also, all the old cores posted in the last thread that do not have banned mons will be updated in those aforementioned posts.
Happy posting!
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