Although Groudon may seem out of place in a tier flooded by vicious special attackers, it has a very valuable and specific niche in Ubers. With a monstrous Attack stat and access to Rock Polish and Swords Dance, Groudon is one of the most prominent physical sweepers in the tier, capable of threatening both stall and offensive teams. Moreover, Groudon can play the role of a fantastic physical wall, and is one of the few Pokemon that can reliably counter Rayquaza, Garchomp, and Lucario thanks to its great Defense. Groudon also has access to Stealth Rock, a very valuable move that many Pokemon in the Uber metagame lack. Overall, Groudon is an extremely unpredictable Pokemon, and its ability to both sweep and support makes it a valuable asset to almost any team.
Groudon's modest Speed and massive Attack stats make it a fantastic user of Rock Polish. This set is best used as a late-game sweeper as you will still need residual damage splashed upon the more bulky Pokemon that are neutral against its attacks. After using Rock Polish, Groudon hits a Speed stat of 500, enough to outrun Choice Scarf Garchomp with a Jolly nature. You can then pick one of Groudon's many options to tear up the field with. STAB Earthquake is mandatory and destroys Dialga, Metagross, and any Pokemon that does not resist Ground yet dares to switch in. Stone Edge complements Earthquake for all-around coverage as well as devastating Lugia, Rayquaza, and most Flying-type foes. If you already have a way to deal with Lugia, Overheat is another option because it OHKOes Skarmory, which would otherwise wall this set.
Dragon Claw is the best option in the last slot, as it allows Groudon to destroy Latias, Latios, Giratina-O, and Rayquaza. Swords Dance, on the other hand, is extremely useful if you can create two turns of setup for Groudon. After both a Rock Polish and a Swords Dance, your opponent will more than likely have to rely on Stone Edge missing if they hope to stop Groudon's rampage. In addition, Swords Dance gives Groudon a reliable way of defeating Wobbuffet barring an untimely Encore, as a +2 Earthquake will always OHKO.Team Options & Additional Comments >>>
Groudon, while commonly seen as a dominating physical sweeper, can also play a supporting role, hindering the walls that usually stop it and halting monstrous physical threats in their tracks. With access to fantastic utility moves such as Stealth Rock and Toxic and sturdy defenses Groudon can survive a wide variety of hits while setting up.
The premise of this set is threefold. Firstly, Groudon plays the role of a wonderful physical wall, countering the likes of Rayquaza, Garchomp, and Lucario while dispatching them with either Earthquake or Stone Edge. Dragon Claw is an option for a more reliable way to hit Rayquaza, and gives Groudon a slightly stronger method of dealing with Palkia and Groudon. However, Stone Edge is largely the superior option thanks to its greater coverage and the ability to OHKO Ho-Oh. Secondly, Groudon is one of the most reliable users of Stealth Rock in Ubers, easily finding time to set up the entry hazard to support its fellow teammates. Finally, this Groudon is meant to spread around either paralysis or poison. Support Groudon is fantastic at luring walls like Lugia and shutting them down with Toxic, as Lugia can only stave off Toxic damage so many times before falling. Groudon can also choose to run Thunder Wave to cripple common switch-ins, which greatly helps slower sweepers wreak havoc. Roar is an option to phaze and scout an opponent's team, constantly whittling down the opposition in the process if Stealth Rock is up.Team Options & Additional Comments >>>
This set looks unusual at first but it is effective when used properly. The main idea is to figure out what Pokemon switches into Groudon. Lugia is the prime example as it attempts to stall Groudon out with Reflect and Roost, leaving it useless. This set proposes a different idea than the normal 'hit and run' or 'cripple everything in sight' strategy. Instead, it meshes the ideas together to create quite the posing threat. It's best to Thunder Wave early in the game when almost every Pokemon is faster than Groudon. Most Pokemon that switch in to take Groudon's attacks aren't usually of the Ground-type, which makes the strategy even more appealing. After crippling some Pokemon, use Swords Dance while the opponent switches, or on Pokemon that don't pose an immediate threat to Groudon. After that, Groudon can tear apart every Pokemon with STAB Earthquake and a boosted Stone Edge. Keep in mind that Stealth Rock is necessary on this set to help generate necessary OHKOs and 2HKOs after a Swords Dance. Without Stealth Rock, Groudon will have a harder time beating down its usual counters even with paralysis on its side.
Paralysis is the crux of this set for many reasons. First off, Lugia has a more difficult time blocking Stone Edges as Roost will not remove the Rock-type weakness. Then, the 25% chance of being fully paralyzed is also a benefit and allows free Swords Dances or even more spamming of Groudon's attacks. Finally, having a Pokemon slower than Groudon is always a benefit for you and trouble for your opponent.Team Options & Additional Comments >>>
Choice Band Groudon is commonly used to hit and run, setting up the sunlight while it’s at it. With Choice Band boosting its already massive Attack stat, it can easily exploit the generally lower physical defensive Pokemon found in Ubers. With this set, Groudon is capable of striking many Ubers very hard. Earthquake is a general STAB attack that leaves a huge dent in any Pokemon not immune or resistant to it. The other three attacks cover every type that Earthquake does not. Stone Edge damages Lugia badly and easily KOs Ho-Oh, while Dragon Claw destroys Latias and Latios, and also provides some extra power against Giratina and Palkia. Fire Punch wrecks Skarmory, Forretress, and Bronzong and receives what is tantamount to a STAB boost thanks to Drought. While Overheat is an option to OHKO Skarmory, Fire Punch works off Groudon’s enormous Attack, doesn’t carry an annoying side effect such as a Special Attack drop, and helps in situations where prediction is required, such as between Skarmory and Blissey. Fire Punch will still take down Skarmory in two hits however.Team Options & Additional Comments >>>
People often assume Groudon is running a defensive set when their powerful attackers fail to KO it and its Leftovers recovery activates. This set capitalizes on that preconception; it maintains the support set's ability to check dangerous physical threats such as Garchomp, Rayquaza, and Lucario, while also providing a strong offensive presence with Rock Polish and Swords Dance. Due to assumptions that people are apt to make, this Groudon set can capitalize on the checks to a standard support set by setting up for a devastating sweep in their face. Thanks to its greater bulk, Groudon also manages far more opportunities to set up than a more offensive variant, and is also harder to revenge kill with priority.
Earthquake is the obvious STAB move of choice for any Ground-type, while the final moveslot goes to a coverage move. Dragon Claw is Groudon's most reliable option for coverage, with perfect accuracy, a decent 80 Base Power, and super effective hits on Pokemon such as Giratina-O and Latios. Stone Edge, on the other hand, is the more powerful move in general and has equally impressive coverage alongside Earthquake. Most notably, Stone Edge allows Groudon to OHKO Rayquaza after Stealth Rock and one round of Life Orb recoil, whereas Dragon Claw does not. Ho-Oh is also OHKOed by Stone Edge, and Lugia and Skarmory will find it much harder to wall Groudon when it is with Stone Edge.Team Options & Additional Comments >>>
A Salac Berry set with Substitute and Swords Dance is certainly viable, and with Wobbuffet's Encore support and potentially paralysis support, it can be very difficult to stop. However, Groudon will be very susceptible to almost all priority attacks. A Swords Dance set with three attacks is also a usable option, although it's mostly outclassed by the ParaDancer due to Groudon's middling Speed. A set with Thunder Wave and three attacks is viable, although it is again slightly inferior to the ParaDancer, as Groudon will have a hard time sweeping without Swords Dance. It does still make a solid supporter despite the absence of Stealth Rock. Groudon has the option of using a Rest + Sleep Talk set, which can be helpful for stall teams. Safeguard will stop Giratina that don’t carry Roar from burning Groudon. Fling while Groudon is holding an Iron Ball will OHKO Lugia after a Swords Dance, provided Lugia doesn’t set up the precautionary Reflect before it attempts to Whirlwind Groudon and its boosts away. Don’t even consider using any special moves aside from Overheat, because Groudon’s noticeably inferior Special Attack and the general surplus of Pokemon with high Special Defense in Ubers will prevent them from doing much damage.
Checks and Counters
Despite its rarity in Ubers, Cresselia is probably the best counter for any Groudon that exists. Its high HP and Defense can quite easily take the best that Groudon can throw at it, along with a Moonlight that is boosted in sunlight to roughly 67% of healing. It can even set up a Reflect to stay alive longer. While Groudon struggles to destroy it, Cresselia can use Grass Knot or Ice Beam for good amounts of direct damage or Toxic to whittle Groudon down slowly. However, Cresselia isn't particularly useful in Ubers aside from a few very specific tasks and is often substituted for by others.
Groudon will run into problems against three common Ubers walls: Lugia, Giratina, and Skarmory. Lugia works similarly to Cresselia in countering Groudon, as it can also use Reflect to reduce damage from Groudon's attacks. While the weakness to Stone Edge may sound disheartening, Lugia's Pressure ability will cut Stone Edge's already meager 8 PP in half, and its Roost will allow it to dump the Rock weakness for a turn assuming it is EVed to outspeed Groudon. Additionally, if Groudon decides to use Swords Dance, Whirlwind will blow away its plans easily. In any situation, Ice Beam is always helpful to land a solid hit. Although Giratina has no reliable recovery outside of Rest and it must rely on Will-O-Wisp's sketchy 75% accuracy to stop it, its immense defenses will usually let it win a bout against Groudon. Skarmory can switch into any Groudon that lacks a Fire-type move, and set up Spikes or use Whirlwind to phaze Groudon.
Due to Groudon's terrible Special Defense and middling Speed, it can easily be exploited in a metagame driven by special attackers. Thus, if the likes of Latios, Latias, Shaymin-S or Mewtwo come in safely, they'll do huge damage to Groudon, potentially OHKOing it.