
Overview
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Dialga has consistently been a cornerstone of Ubers play since its introduction. It is an extremely reliable Stealth Rock user on account of its solid defenses and an incredible type combination that affords it nine resistances and an immunity to Poison-type moves. Dialga's Steel / Dragon typing is just as spectacular offensively, especially when its base 150 Special Attack and wide movepool are taken into account. These traits establish Dialga as one of the most versatile Pokemon in the metagame and make it notoriously difficult to switch into. Aside from its average Speed, lack of reliable recovery, and weakness to common Ground-type moves, Dialga does not really have any shortcomings at all; it has the stats, movepool, and typing to find a way around every single one of its checks and counters. Unfortunately, its common attacking moves have had their Base Power reduced, and the Steel-type has lost some defensive potency, but these are not major issues. Ultimately, Dialga is a Pokemon that can pull its weight on practically any team and is very easy to find room for.
Defensive
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name: Defensive
move 1: Stealth Rock
move 2: Toxic
move 3: Draco Meteor
move 4: Fire Blast / Roar
ability: Pressure
item: Leftovers
evs: 248 HP / 8 SpA / 252 SpD
nature: Calm
Moves
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Dialga is one of the sturdiest Stealth Rock users in Ubers, as its typing and defenses often allow it to switch in multiple times throughout a match to set up the entry hazard. Toxic is mainly used to cripple support Arceus formes hoping to switch in and clear the field with Defog, though it has plenty of utility against other threats as well. It also notably allows Dialga to check Electric Arceus, which is a very difficult task otherwise. Draco Meteor's high Base Power compensates for the lack of offensive EV investment, and it still OHKOes Defog Giratina-O. Fire Blast hits Steel-types super effectively, notably Defog Scizor. However, Roar can be used instead to prevent Dialga from becoming setup fodder for Pokemon that have ways of dealing with Toxic. Thunder is also an option in the last slot for Kyogre and Substitute or Taunt users such as Lugia, Ho-Oh, and Yveltal.
Set Details
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A specially defensive EV spread maximizes Dialga's ability to deal with Arceus formes and various other specially based threats. Speed investment is an option, as Dialga enjoys outpacing other Pokemon in the base 90 Speed tier such as Ho-Oh. Additionally, an alternative EV spread of 248 HP / 56 SpA / 204 SpD with a Modest nature is viable. In exchange for some special bulk, such a spread lets Dialga hit slightly harder while retaining the ability to survive two of Kyogre's unboosted Water Spouts or two of Palkia's Lustrous Orb-boosted Spacial Rends.
Usage Tips
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Take advantage of Dialga's resistances and bulk as well as its ability to threaten Defog users; it can come in multiple times throughout a match to set up Stealth Rock if needed. That said, Dialga can still be worn down easily from repeated switch-ins because it lacks recovery outside of Leftovers. Also, Dialga should not always be led with, as it will often find itself starting against the opponent's Groudon or Landorus-T. Finally, it's worth noting that defensive Dialga is a good backup check to Kyogre, especially if it runs Thunder or Roar. It can also take on Palkia decently.
Team Options
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In general, this variant of Dialga provides support for its teammates as opposed to requiring support of its own. Still, many Pokemon pair well with it. Ho-Oh, Lugia, Giratina-O, Rayquaza, Landorus-T, Shaymin-S, Thundurus, Mega Charizard Y, and Flying Arceus all have remarkable defensive synergy with Dialga. Yveltal, Kyogre, Palkia, and Water Arceus can threaten Ground-types and Blaziken effectively. Lastly, Mega Gengar can trap and eliminate Pokemon that are particularly troublesome for this set due to the lack of coverage, notably Fairy-type clerics such as Sylveon and Xerneas.
Offensive
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name: Offensive
move 1: Draco Meteor
move 2: Flash Cannon
move 3: Fire Blast
move 4: Thunder / Stealth Rock
ability: Pressure
item: Life Orb / Adamant Orb
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Moves
========
Draco Meteor is usually Dialga's go-to STAB move, and it OHKOes or severely dents anything bar Fairy-types, Steel-types, and special walls thanks to the boost from Dialga's held item. Courtesy of its secondary Steel typing, Dialga can viably run Flash Cannon, which deters Fairy-types from switching into Draco Meteor by threatening to dent any that do. It also scores a super effective hit on Rock-types such as Tyranitar, Terrakion, and Rock Arceus. Fire Blast hits most Steel-types hard even after a special attack drop from Draco Meteor, particularly if a Life Orb is used. Thunder is primarily for Kyogre and Water Arceus, but it also hits certain special walls and tanks super effectively, including Lugia and Ho-Oh. If Thunder is unappealing, Stealth Rock is an option for use on more offensive teams that would otherwise lack a user of the move. However, it should be noted that without a status move, Dialga cannot reliably keep the entry hazard up against many Arceus formes that carry Defog.
Set Details
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A Modest nature with maximum Special Attack and Speed investment maximizes Dialga's damaging potential and allows it to at least tie with other neutral-natured base 90 Speed Pokemon. A Timid nature can be used, but this causes Dialga to miss out on important potential OHKOs on Pokemon such as Groudon. Using an Adamant Orb over a Life Orb yields a similar drawback but improves Dialga's longevity.
Opting for an alternative EV spread of 152 HP / 252 SpA / 20 SpD / 84 Spe gives Dialga a small amount of added bulk with minimal Life Orb recoil and allows it to outspeed everything up to Pokemon with an uninvested base 100 Speed. This spread should be changed to 168 HP / 252 SpA / 4 SpD / 84 Spe if an Adamant Orb is used, as Life Orb recoil is not a factor.
Usage Tips
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Offensive Dialga's Draco Meteor can actually OHKO all but the bulkiest of Ground- and Fighting-types that lack a secondary Steel typing, and Dialga easily threatens the Fairy- and Steel-types that can absorb a Draco Meteor with the appropriate move. However, be careful about using Draco Meteor against specially bulky Pokemon that can capitalize on the Special Attack drop it causes, such as Ho-Oh, Lugia, Blissey, and Calm Mind users. In addition, consider Dialga's bluffing potential as either a defensive Dialga (when at full HP) or a Choice-locked Dialga (when an Adamant Orb is equipped) to anticipate your opponent's reaction and smash them accordingly.
Team Options
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Flying-types and Levitating Ghost-types make for naturally great teammates, as they cover Dialga's two weaknesses effectively. More specifically, offensive Dialga particularly appreciates Pokemon that can deal with specially bulky foes such as Blissey and Heatran. These include strong physical attackers and powerful wallbreakers such as Landorus-T and Choice Specs Kyogre, the latter of which provides rain to alleviate Thunder's accuracy problems. This Dialga variant also benefits greatly from entry hazard support. A single layer of Spikes or Stealth Rock can secure crucial KOs such as an OHKO on Groudon and a 2HKO on Tyranitar, while Sticky Web support allows Modest Dialga to outspeed the entire unboosted metagame outside of Deoxys-S and Naive Deoxys-A.
Choice Specs
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name: Choice Specs
move 1: Draco Meteor
move 2: Flash Cannon
move 3: Fire Blast
move 4: Thunder
ability: Pressure
item: Choice Specs
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Moves
========
Backed by Choice Specs, Draco Meteor devastates nearly anything, even most Steel-types. Flash Cannon hits Fairy- and Rock-types super effectively, and it discourages the former from switching into Dialga at all. Fire Blast provides coverage against Steel-types, while Thunder is used for Kyogre, Water Arceus, Lugia, and Ho-Oh. Dragon Pulse is a much more consistent option than Draco Meteor, but it is considerably weaker.
Set Details
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Maximizing Dialga's Special Attack stat causes its attacks to deal ludicrous amounts of damage with the boost from Choice Specs, while maximum Speed investment allows Dialga to outrun and OHKO bulkier Pokemon with a similar base Speed stat, such as support Groudon and defensive Yveltal. 168 HP / 252 SpA / 4 SpD / 84 Spe is an alternative EV spread that grants Dialga some added bulk while keeping its ability to outspeed everything up to Pokemon with an uninvested base 100 Speed intact. A Timid nature with the original EV spread is also viable in order to outpace Pokemon within the base 90-99 Speed range that commonly use a neutral Speed nature, such as Swords Dance Rayquaza.
Usage Tips
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Most of the time, abuse Draco Meteor; it hurts most Steel-types, and Fairy-types will rarely switch in on Dialga because they fear taking a Flash Cannon. However, Fairy-types become a problem once Dialga's set is revealed, as they can then switch into a predicted Draco Meteor with impunity and receive a free turn afterwards. Be wary of special walls and Calm Mind users as well, because these Pokemon can survive a Draco Meteor and exploit the resultant Special Attack drop. Aside from this, a Choice Specs Draco Meteor will flat out OHKO every single relevant Ground- and Fighting-type other than Fighting Arceus, Excadrill, Lucario, and Ground Arceus, and even then, the latter two have a chance to be OHKOed. Also, Choice Specs Dialga can safely bluff any other set while at full HP, meaning it's not a bad choice to lead with—it can easily end up OHKOing a Ground-type threat such as Groudon right off the bat.
Team Options
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Once again, Flying-types and Levitating Ghost-types make great teammates due to their defensive synergy with Dialga, while offensive juggernauts such as Mewtwo and Choice Specs Kyogre can muscle through the special walls that Dialga struggles against. A Toxic lure is also helpful for Pokemon such as Lugia, Ho-Oh, and Calm Mind users and aids Dialga in breaking past them later. This set also enjoys Sticky Web support due to Dialga's middling Speed.
Other Options
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Dialga has a ton of other options, though many have decreased in effectiveness from previous generations. A Choice Scarf set is usable and notably effective at picking off weakened Extreme Killer Arceus. Air Balloon is another interesting item option for Dialga that is preferable to Magnet Rise because Magnet Rise takes up a moveslot. Aura Sphere and Earth Power are alternative coverage options that can hit Heatran super effectively, but they are inferior to Fire Blast against most other Steel-types. Similarly, Stone Edge or Power Gem can be used for Ho-Oh. Thunder Wave is a good status option that can neuter faster attackers. Heal Block works wonders against walls, but it is difficult to find room for. Dialga is a good user of Trick Room and can surprise many faster switch-ins with the move. Metal Burst is another intriguing option, but it is often too unreliable to be of much use. Dragon Tail can be used to phaze, but Roar is generally safer due to the existence of Fairy-types. Rest is Dialga's only reliable recovery move. Lastly, Bulk Up is yet another interesting option that can be used on a mixed lure set for Ground-types alongside Iron Head, Draco Meteor, and Fire Blast or Outrage. It can also be used on a RestTalk mono-attacking set with Iron Head, but this is rather gimmicky and wastes Dialga's formidable special attacking potential.
Checks & Counters
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**Specially Bulky Clerics and Status Absorbers**: Dialga's standard support set is very difficult to outright counter, especially with the presence of Mega Gengar as a teammate. However, clerics such as Sylveon, Xerneas, and Blissey have no trouble against support Dialga. Specially defensive Kyogre can take on Dialga lacking Thunder. Many other specially bulky Pokemon are good answers to Dialga as well, especially if they have methods of dealing with Toxic. Heatran and defensive Mega Mewtwo Y are notable examples of this.
**Ground- and Fighting-types**: Though they cannot switch in easily, Ground- and Fighting-types such as Groudon, Ground Arceus, Blaziken, and Mega Mewtwo X are capable of OHKOing Dialga with their STAB moves.
**Arceus Formes**: Almost any variant of Arceus that doesn't mind Toxic is a good answer to Dialga, including Poison Arceus and Calm Mind + Refresh Water, Dark, or Fairy Arceus.
**Ho-Oh**: Due to Regenerator, Ho-Oh doesn't mind Toxic as much as other special walls, fearing only Thunder. It can often safely set up a Substitute against Dialga or hit it hard with Sacred Fire or Earthquake.
**Anti-Leading**: Darkrai threatens Dialga in a lead scenario, as do Pokemon that can hit it super effectively, such as offensive Groudon.
Overview
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Defensive
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name: Defensive
move 1: Stealth Rock
move 2: Toxic
move 3: Draco Meteor
move 4: Fire Blast / Roar
ability: Pressure
item: Leftovers
evs: 248 HP / 8 SpA / 252 SpD
nature: Calm
Moves
========
Set Details
========
Usage Tips
========
Team Options
========
All-Out Attacker
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name: Offensive
move 1: Draco Meteor
move 2: Flash Cannon
move 3: Fire Blast
move 4: Thunder
ability: Pressure
item: Life Orb / Adamant Orb
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Moves
========
Set Details
========
Usage Tips
========
Team Options
========
Choice Specs
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name: Choice Specs
move 1: Draco Meteor
move 2: Flash Cannon
move 3: Fire Blast
move 4: Thunder
ability: Pressure
item: Choice Specs
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Moves
========
Set Details
========
Usage Tips
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Team Options
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Other Options
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Checks & Counters
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- Extremely reliable Stealth Rock user, good defenses and defensive typing
- Offensively, has base 150 SpA and Dragon-type STAB complemented by the rare Steel-type STAB
- Very versatile and thus unpredictable and notoriously difficult to switch into + has a way around all of its checks and counters
- Does not have many shortcomings at all other than average Speed and weakness to common Ground-type moves
- Loss of Dark- and Ghost-type resistances is annoying, as is the nerf to special moves
Defensive
########
name: Defensive
move 1: Stealth Rock
move 2: Toxic
move 3: Draco Meteor
move 4: Fire Blast / Roar
ability: Pressure
item: Leftovers
evs: 248 HP / 8 SpA / 252 SpD
nature: Calm
Moves
========
- Stealth Rock is Stealth Rock, Dialga is an incredibly reliable user of it
- Toxic is mainly for support Arceus hoping to come in and Defog. It notably allows Dialga to check Electric Arceus, which is very difficult to do
- Draco Meteor's high BP makes up for the lack of offensive investment, and it OHKOes Defog Giratina-O
- Fire Blast his Steel-types (notably Defog Scizor)
- Roar is good with Stealth Rock and prevents Dialga from becoming setup bait
- Thunder is an option for Kyogre and Subsitute/Taunt users such as Ho-Oh, Lugia, and Yveltal
Set Details
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- EV spread lets Dialga deal with support Arceus effectively
- Speed investment is viable, Dialga likes outspeeding other base 90s like support Groudon
- EV spread of 248 HP / 60 SpA / 200 SpD with a Modest nature lets Dialga hit moderately hard but still take two unboosted Water Spouts or Lustrous Orb Spacial Rends
Usage Tips
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- Dialga has the bulk and typing to come in multiple times throughout a match and set up Stealth Rock, so take advantage of that
- Also take advantage of its ability to beat Defog users (support Arceus, Giratina-O, Scizor with Toxic/Draco Meteor/Fire Blast)
- Don't be predictable and always lead with Dialga, as you'll often find yourself starting against your opponent's Groudon or Landorus-T
- Dialga is a good backup check to non-Specs Kyogre, especially if it runs Thunder (or Roar for defensive variants). To a lesser extent, it can also take on Palkia decently. It should never be the primary check to either, though
- It should be stressed that Dialga gets worn down easily from repeated switch-ins due to no recovery outside of Leftovers
Team Options
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- Teammates that appreciate a reliable Stealth Rock user that can keep it up throughout the match
- Naturally, Pokemon that can take on Ground-types and Fighting-types are good teammates. Examples of these include Landorus-T, Gliscor, Kyogre, Palkia, Water/Grass Arceus, Giratina-O, Yveltal, Gengar, Skarmory, defensive Xerneas, Mewtwo
All-Out Attacker
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name: Offensive
move 1: Draco Meteor
move 2: Flash Cannon
move 3: Fire Blast
move 4: Thunder
ability: Pressure
item: Life Orb / Adamant Orb
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Moves
========
- Draco Meteor is usually Dialga's go-to STAB move, Fairy-types usually don't switch into offensive Dialga due to the threat of Flash Cannon
- Flash Cannon is also notable for its ability to hit Tyranitar, Rock Arceus, and Terrakion super effectively
- Fire Blast hits Steel-types
- Thunder is for Kyogre, Ho-Oh, Lugia, Yveltal, and Water Arceus
Set Details
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- 152 HP / 252 SpA / 20 SpD / 84 Spe is a bulkier spread with enough Speed for everything up to uninvested base 100s (Gliscor, Xerneas/Yveltal, Palkia) and minimal Life Orb recoil
- 168 HP / 252 SpA / 4 SpD / 84 Spe for a bulkier spread with Adamant Orb
- A Timid nature can be used to outspeed neutral natured base 95s/99s and tie other base 90s
Usage Tips
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- LO/Adamant Orb Draco Meteor can actually OHKO all but the specially bulkiest of Ground- and Fighting-types even without any prior damage (and Fire Blast hits those that resist it), so don't be afraid to use it excessively, especially since Fairy-types can simply be hit with Flash Cannon if they decide to switch in. Be careful against Ho-Oh, Lugia, Blissey, support Arceus, specially defensive Yveltal, etc. though (i.e. Pokemon that can easily take advantage of Draco Meteor's SpA drop and use a recovery move)
- Dialga at full HP can potentially bluff a defensive set
- Likewise, using Adamant Orb can allow you to bluff Choice Specs if Dialga KOes something
Team Options
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- Again, Pokemon that take on Ground- and Fighting-types well are good teammates
- Pokemon that can deal with Blissey are also good teammates (strong physical attackers, 101 HP Substitute users, etc.)
- Spikes/SR support is useful, as a single layer of Spikes or Stealth Rock often secures KOs (e.g. the 2HKO on Tyranitar with Flash Cannon)
- Dialga can often lure in and heavily damage things like Steel-types after a Draco Meteor -- pair it with sweepers that need these Pokemon gone, such as Extreme Killer Arceus
Choice Specs
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name: Choice Specs
move 1: Draco Meteor
move 2: Flash Cannon
move 3: Fire Blast
move 4: Thunder
ability: Pressure
item: Choice Specs
evs: 252 SpA / 4 SpD / 252 Spe
nature: Modest
Moves
========
- Draco Meteor inflicts massive damage on everything, even some Steel-types, with a Choice Specs boost -- Flash Cannon strongly discourages Fairy-types from switching in
- Flash Cannon hits Fairy-types and Rock-types super effectively
- Fire Blast is for Steel-types
- Thunder is for Kyogre, Water Arceus, and bulky Flying-types (Ho-Oh, Lugia, the rare specially defensive Yveltal)
- Dragon Pulse is much more consistent than Draco Meteor, but considerably weaker
Set Details
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- 168 HP / 252 SpA / 4 SpD / 84 Spe is a bulkier spread with enough Speed for everything up to uninvested base 100s (Gliscor, Xerneas/Yveltal, Palkia)
- A Timid nature can be used to outspeed neutral natured base 95s/99s and tie other base 90s
Usage Tips
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- Spam Draco Meteor, but be careful after your first use of it -- the opponent will usually be able to tell that Dialga is Choice-locked and can switch in a Fairy-type
- Specs Draco Meteor will flat out OHKO every single relevant Ground- and Fighting-type from full HP bar Ground Arceus, Excadrill, Fighting Arceus, and Lucario (although Ground Arceus has a small chance of being OHKOed while Lucario has a 50% chance) -- do not hesitate to use it in most cases unless the opponent has a Fairy-type or something like Ho-Oh, Lugia, or Blissey that can take advantage of the SpA drop it causes
- Choice Specs Dialga can potentially bluff a defensive set when at full HP. Thus, it's actually not a bad choice to lead with, and it can easily OHKO something like Groudon or Landorus-T right off the bat
Team Options
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- Choice Specs Dialga is actually capable of OHKOing pretty much everything that threatens it; teammates that deal with Ground- and Fighting-types are nice, but not necessary
- A Toxic lure for Pokemon like Lugia and Ho-Oh significantly aids Dialga in breaking past them later
- Pokemon that can deal with Blissey are also good teammates (strong physical attackers, 101 HP Substitute users, etc.)
Other Options
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- Choice Scarf
- Air Balloon
- Aura Sphere
- Earth Power
- Stone Edge/Power Gem
- Thunder Wave
- Heal Block
- Trick Room
- Metal Burst
- Rest
- Dragon Tail
- Mixed
- Bulk Up
Specs-boosted Roar of Time will actually OHKO Ground Arceus (and Lucario) 100% of the time, and it has a chance to OHKO Fighting Arceus as well
Checks & Counters
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- Heatran
- Ground-types
- Fighting-types
- Blissey
- Other special walls/tanks (Lugia/Ho-Oh) if rain is not up
- Calm Mind Arceus
- Tyranitar
- Shadow Tag (mainly Mega Gengar and Gothitelle)
- Fairy-types that can cure status easily defeat the defensive set
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