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No. 0130

Mega Gyarados

Atrocious Pokémon

BaseMega
Mega Gyarados official artwork
Official art

Mega Gyarados is the Water/Dark-type Mega Evolution of Gyarados, 2× weak to Fighting, Bug, Grass, Electric and Fairy, with a base stat total of 640. On Pokémon Showdown it’s on 0.2% of Champions VGC teams (Sep 2026).

WaterDark
Height
6.5 m 21′04″
Weight
305 kg 672.4 lbs
Base stat total
640 Higher than 98% of Pokémon
Introduced
Gen VI X & Y
Abilities
Mold Breaker
Pokédex entryLegends: Arceus
I suspect this Pokémon to be the true identity of a dragon written of in ancient texts, which claimed that it razed an entire village with white-hot beams from its maw.
See all 18 entries

Base stats

HP95170–202300–394
Atk155157–227283–449
Def109116–177200–348
SpA7081–134130–262
SpD130135–200238–394
Spe8190–146150–287
Total640Higher than 98% of Pokémon
HP95Atk155Def109Spe81SpD130SpA70

Ranges in Pokémon Champions at Lv 50: 0 Stat Points with a −10% Stat Alignment to 32 Stat Points with a +10% one (HP has no alignment).Ranges in the main games at Lv 100: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 2 Atk.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature
Calculate damage →

Type matchups

WaterDarkshow which type causes itweaknessresistance

Weak to

2×
Bug (because of Dark)Electric (because of Water)Fairy (because of Dark)Fighting (because of Dark)Grass (because of Water)

Resists

½×
Dark (because of Dark)Fire (because of Water)Ghost (because of Dark)Ice (because of Water)Steel (because of Water)Water (because of Water)

Immune to

0×
Psychic (because of Dark)
Takes normal damage from 6 types
NormalFlyingPoisonGroundRockDragon

Speed tiers

The faster Pokémon moves first each turn, so knowing who you outspeed decides a lot of battles. These are its Speed values at Lv 50 in Pokémon Champions (base Speed 81); Choice Scarf and Tailwind use the Max+ value.

Max+146Max133No SP101Min90Scarf (Choice Scarf)219Tailwind292

At max Speed, Gyarados outspeeds 14 of the 30 most used Pokémon in Champions VGC on Showdown.

Speed at Lv 50 in Pokémon Champions: Gyarados against the 30 most used Pokémon in Champions VGC on Showdown, fastest first
SpeedPokémon
203Mega Garchomp ZModest · 32 SP · #21 on Showdown
200Mega GengarTimid · 32 SP · #26 on Showdown
190Mega Raichu YTimid · 23 SP · #13 on Showdown
189Mega SalamenceTimid · 32 SP · #4 on Showdown
184WhimsicottTimid · 32 SP · #23 on Showdown
178Mega MetagrossJolly · 32 SP · #28 on Showdown
178Mega StaraptorJolly · 32 SP · #29 on Showdown
172SneaslerAdamant · 32 SP · #2 on Showdown
169Mega FloetteTimid · 32 SP · #17 on Showdown
169GarchompJolly · 32 SP · #19 on Showdown
167Mega Charizard YTimid · 32 SP · #14 on Showdown
167Mega GardevoirTimid · 32 SP · #20 on Showdown
161IndeedeeTimid · 32 SP · #30 on Showdown
156Hisuian ArcanineJolly · 32 SP · #16 on Showdown
150ArchaludonTimid · 32 SP · #9 on Showdown
149GholdengoTimid · 32 SP · #8 on Showdown
146Gyarados · Max+32 SP, Speed-raising alignment
143BasculegionJolly · 32 SP · #6 on Showdown
133Gyarados · Max32 SP, neutral alignment
128PelipperTimid · 32 SP · #12 on Showdown
120VolcaronaBold · 0 SP · #25 on Showdown
105RillaboomAdamant · 0 SP · #1 on Showdown
101Gyarados · No SP0 SP, neutral alignment
101MiloticCalm · 0 SP · #15 on Showdown
95SylveonModest · 15 SP · #18 on Showdown
94Female IndeedeeRelaxed · 0 SP · #7 on Showdown
90PolitoedCalm · 0 SP · #22 on Showdown
90SinistchaBold · 0 SP · #24 on Showdown
85ArmarougeQuiet · 0 SP · #27 on Showdown
80IncineroarCareful · 0 SP · #3 on Showdown
80FarigirafBold · 0 SP · #11 on Showdown
70KingambitAdamant · 0 SP · #5 on Showdown
60Mega GolisopodAdamant · 0 SP · #10 on Showdown

Smogon · Showdown Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Abilities

Competitive

Usage over time

Values
Mega Gyarados, Champions VGC on Showdown, Showdown: top players (1760 weighting)
MonthRegulationBattlesShare of teams
Apr 2026Reg M-A3,122,2221.1%
May 2026Reg M-A3,355,6190.7%
Jun 2026Reg M-B1,163,3150.5%
Jul 2026Reg M-B1,764,6860.5%
Aug 2026Reg M-B1,269,2500.6%
Sep 2026Reg M-C1,631,9430.2%

Smogon · Showdown On Showdown

Sep 2026

1.6% of teams · rank #73 · Reg M-C · Singles · about 11 teams with it · 69,462 battles · Sep 2026Thin data: about 11 teams behind these numbers.Few players at this level: 625–764 teams’ worth of games in this format.

Most common build

Stat Alignment
Jolly
Stat Points
2 HP / 32 Atk / 32 Spe
  1. Earthquake, Physical, power 100, accuracy 100%
  2. Dragon Dance, Status
  3. Waterfall, Physical, power 80, accuracy 100%
  4. Ice Fang, Physical, power 65, accuracy 95%

Each part is the most used on its own, so not every team runs this exact set.

Usage by Showdown level

  • Showdown: all games2.2%
  • Showdown: average player (1500 weighting)2.2%
  • Showdown: competitive (1630 weighting)1.8%
  • Showdown: top players (1760 weighting) thin1.6%

Moves

Items

Abilities

Stat Points

  • Jolly 2 HP / 32 Atk / 32 Spe22.9%
  • Jolly 1 HP / 32 Atk / 1 Def / 32 Spe21.5%
  • Adamant 1 HP / 32 Atk / 1 SpD / 32 Spe11.1%
  • Adamant 21 HP / 32 Atk / 13 Def8.1%

These 4 cover 63.6% of its sets.

Most common partners

Other Showdown formats Scarlet & Violet, with Tera
National DexUUBL

Evolution

  1. #0129MagikarpWater
    1. Level 20
      #0130GyaradosWaterFlying
      1. Mega Evolution, in battleholding Gyaradosite
        #0130Mega GyaradosWaterDark

Moves

Level up 19

EvoBite30% chance to make the target flinch.DarkPhysical60100%25
1FlailMore power the less HP the user has left.NormalPhysical—100%15
1LeerLowers the foe(s) Defense by 1.NormalStatus—100%30
1SplashNo competitive use.NormalStatus——40
1TackleNo additional effect.NormalPhysical40100%35
1Twister20% chance to make the foe(s) flinch.DragonSpecial40100%20
4WhirlpoolTraps and damages the target for 4-5 turns.WaterSpecial3585%15
8Ice Fang10% chance to freeze. 10% chance to flinch.IcePhysical6595%15
12BrinePower doubles if the target's HP is 50% or less.WaterSpecial65100%10
16Scary FaceLowers the target's Speed by 2.NormalStatus—100%10
21Waterfall20% chance to make the target flinch.WaterPhysical80100%15
24Crunch20% chance to lower the target's Defense by 1.DarkPhysical80100%15
28Rain DanceFor 5 turns, heavy rain powers Water moves.WaterStatus——5
32Aqua TailNo additional effect.WaterPhysical9090%10
36Dragon DanceRaises the user's Attack and Speed by 1.DragonStatus——20
40Hydro PumpNo additional effect.WaterSpecial11080%5
44Hurricane30% chance to confuse target. Can't miss in rain.FlyingSpecial11070%10
48ThrashLasts 2-3 turns. Confuses the user afterwards.NormalPhysical120100%10
52Hyper BeamUser cannot move next turn.NormalSpecial15090%5

TM / HM / TR 54

TM01Take DownHas 1/4 recoil.NormalPhysical9085%20
TM06Scary FaceLowers the target's Speed by 2.NormalStatus—100%10
TM07ProtectPrevents moves from affecting the user this turn.NormalStatus——10
TM10Ice Fang10% chance to freeze. 10% chance to flinch.IcePhysical6595%15
TM11Water Pulse20% chance to confuse the target.WaterSpecial60100%20
TM22Chilling Water100% chance to lower the target's Attack by 1.WaterSpecial50100%20
TM25FacadePower doubles if user is burn/poison/paralyzed.NormalPhysical70100%20
TM28Bulldoze100% chance lower adjacent Pkmn Speed by 1.GroundPhysical60100%20
TM34Icy Wind100% chance to lower the foe(s) Speed by 1.IceSpecial5595%15
TM44Dragon TailForces the target to switch to a random ally.DragonPhysical6090%10
TM46AvalanchePower doubles if user is damaged by the target.IcePhysical60100%10
TM47EndureUser survives attacks this turn with at least 1 HP.NormalStatus——10
TM49Sunny DayFor 5 turns, intense sunlight powers Fire moves.FireStatus——5
TM50Rain DanceFor 5 turns, heavy rain powers Water moves.WaterStatus——5
TM51SandstormFor 5 turns, a sandstorm rages. Rock: 1.5× SpD.RockStatus——10
TM66Body Slam30% chance to paralyze the target.NormalPhysical85100%15
TM70Sleep TalkUser must be asleep. Uses another known move.NormalStatus——10
TM77Waterfall20% chance to make the target flinch.WaterPhysical80100%15
TM82Thunder WaveParalyzes the target.ElectricStatus—90%20
TM85RestUser sleeps 2 turns and restores HP and status.PsychicStatus——5
TM87TauntTarget can't use status moves its next 3 turns.DarkStatus—100%20
TM94Dark Pulse20% chance to make the target flinch.DarkSpecial80100%15
TM99Iron Head30% chance to make the target flinch.SteelPhysical80100%15
TM100Dragon DanceRaises the user's Attack and Speed by 1.DragonStatus——20
TM103SubstituteUser takes 1/4 its max HP to put in a substitute.NormalStatus——10
TM108Crunch20% chance to lower the target's Defense by 1.DarkPhysical80100%15
TM115Dragon PulseNo additional effect.DragonSpecial85100%10
TM123SurfHits adjacent Pokémon. Double damage on Dive.WaterSpecial90100%15
TM125Flamethrower10% chance to burn the target.FireSpecial90100%15
TM126Thunderbolt10% chance to paralyze the target.ElectricSpecial90100%15
TM130Helping HandOne adjacent ally's move power is 1.5× this turn.NormalStatus——20
TM135Ice Beam10% chance to freeze the target.IceSpecial90100%10
TM141Fire Blast10% chance to burn the target.FireSpecial11085%5
TM142Hydro PumpNo additional effect.WaterSpecial11080%5
TM143Blizzard10% chance to freeze foe(s). Can't miss in Snow.IceSpecial11070%5
TM149EarthquakeHits adjacent Pokémon. Double damage on Dig.GroundPhysical100100%10
TM150Stone EdgeHigh critical hit ratio.RockPhysical10080%5
TM152Giga ImpactUser cannot move next turn.NormalPhysical15090%5
TM156OutrageLasts 2-3 turns. Confuses the user afterwards.DragonPhysical120100%10
TM160Hurricane30% chance to confuse target. Can't miss in rain.FlyingSpecial11070%10
TM163Hyper BeamUser cannot move next turn.NormalSpecial15090%5
TM166Thunder30% chance to paralyze. Can't miss in rain.ElectricSpecial11070%10
TM171Tera BlastIf Terastallized: Phys. if Atk > SpA, type = Tera.NormalSpecial80100%10
TM172RoarForces the target to switch to a random ally.NormalStatus——20
TM177SpiteLowers the PP of the target's last move by 4.GhostStatus—100%10
TM188Scald30% chance to burn the target. Thaws target.WaterSpecial80100%15
TM199Lash Out2× power if the user had a stat lowered this turn.DarkPhysical75100%5
TM200Scale ShotHits 2-5 times. User: -1 Def, +1 Spe after last hit.DragonPhysical2590%20
TM204Double-EdgeHas 33% recoil.NormalPhysical120100%15
TM205EndeavorLowers the target's HP to the user's HP.NormalPhysical—100%5
TM207Temper FlarePower doubles if the user's last move failed.FirePhysical75100%10
TM208WhirlpoolTraps and damages the target for 4-5 turns.WaterSpecial3585%15
TM209Muddy Water30% chance to lower the foe(s) accuracy by 1.WaterSpecial9085%10
TM226Dragon CheerAlly: Crit ratio +1, or +2 if ally is Dragon type.DragonStatus——15

Biology

Gyarados is the evolved form of Magikarp, boasting significant strength and power. Gyarados are large, blue, snake-like Pokémon, well-known for their bad tempers, and they frequently go on violent rampages. When Magikarp evolves into Gyarados, its brain cells undergo a structural transformation, said to be the cause of its violent nature.

Throughout history, it would appear and burn down cities, villages, and towns in rampages lasting around a month. There are some regions where it is called "the deity of destruction". Gyarados cannot actually fly.

Design & origin

Gyarados's design is inspired by dragons, specifically dragons seen in Chinese mythology. Magikarp's evolution into Gyarados is based on the Chinese tale of carp that leap over a legendary waterfall called the Dragon Gate and are transformed into dragons. In the game's beta, Gyarados had a vastly different design, resembling an eyeless, worm-like creature with sharp teeth.

Its beta English name was "Skulkraken", a combination of "skull" or "skulk" and "kraken", but the final release used the original Japanese name.

Forms

Mega Gyarados

WaterDarkMold Breaker
BST 640

HoldsGyaradosite

Its destructive nature has further ascended due to Mega Evolution energy placing a burden on it. Its native instinct is to destroy everything it sees using power-jets of water coming from the red orifices on its sides.

If a ship is caught in the way, it will be cleanly split in half. However, it will listen to a trainer who it shares a deep bond with.

Adapted from Wikipedia: Magikarp and Gyarados, List of generation I Pokémon, List of generation VI Pokémon · CC BY-SA 4.0 · edited.

Polls & views

Each line is one source, as it published it. Polls counted every form under its species.

Pokédex entries

Category
Atrocious Pokémon
Debut
Kanto · Red & Green (JP)
Color
Blue
Shape
Habitat
Water's Edge
Pal Park area
Pond
Kanto#130Original Johto#077Original Hoenn#053Original Sinnoh#024Extended Sinnoh#024Updated Johto#077Central Kalos#050New Hoenn#054Original Alola#092Original Melemele#092Original Akala#035Original Ula’ula#052Original Poni#042Updated Alola#112Updated Melemele#112Updated Akala#035Updated Ula’ula#055Updated Poni#054Let’s Go Kanto#130Galar#145Isle of Armor#043Crown Tundra#063Hisui#081Paldea#135Kitakami#044Lumiose#033

  1. I suspect this Pokémon to be the true identity of a dragon written of in ancient texts, which claimed that it razed an entire village with white-hot beams from its maw.

    Legends: Arceus

  2. The energy from evolution stimulated its brain cells strongly, causing it to become very ferocious.

    Ultra Moon

  3. It fires hyper beams in all directions, burning the surrounding area to ash. There are some regions where it’s called “the deity of destruction.”

    Ultra Sun

  4. There are people who swear that any place Gyarados appears is fated for destruction.

    Moon

  5. A tale is told of a town that angered Gyarados. Before the sun rose the next day, flames utterly consumed the town, leaving not a trace behind.

    Sun

  6. They say that during past strife, GYARADOS would appear and leave blazing ruins in its wake.

    HeartGold

  7. Once it begins to rampage, a GYARADOS will burn everything down, even in a harsh storm.

    Platinum · Black · White · Black 2 · White 2 · Shield

  8. In ancient literature, there is a record of a GYARADOS that razed a village when violence flared.

    Pearl · X

  9. Once it appears, its rage never settles until it has razed the fields and mountains around it.

    Diamond

  10. It has an extremely aggressive nature. The HYPER BEAM it shoots from its mouth totally incinerates all targets.

    FireRed · Sword

  11. It is an extremely vicious and violent Pokémon. When humans begin to fight, it will appear and burn everything to the ground with intensely hot flames.

    Emerald

  12. Once GYARADOS goes on a rampage, its ferociously violent blood doesn’t calm until it has burned everything down. There are records of this Pokémon’s rampages lasting a whole month.

    Sapphire · Alpha Sapphire

  13. When MAGIKARP evolves into GYARADOS, its brain cells undergo a structural transformation. It is said that this transformation is to blame for this Pokémon’s wildly violent nature.

    Ruby · Omega Ruby

  14. It appears whenever there is world conflict, burning down any place it travels through.

    Crystal

  15. Once it appears, it goes on a rampage. It remains enraged until it demolishes everything around it.

    Silver · SoulSilver

  16. They say that during past wars, GYARADOS would appear and leave blazing ruins in its wake.

    Gold

  17. Brutally vicious and enormously destructive. Known for totally destroying cities in ancient times.

    Yellow · Let’s Go, Pikachu! · Let’s Go, Eevee!

  18. Rarely seen in the wild. Huge and vicious, it is capable of destroying entire cities in a rage.

    Red · Blue · LeafGreen · Y

Names around the world

English
Gyarados
Japanese
ギャラドス
Japanese (romaji)
Gyarados
Korean
갸라도스
Chinese (Traditional)
暴鯉龍
Chinese (Simplified)
暴鲤龙
French
Léviator
German
Garados
Spanish
Gyarados
Italian
Gyarados

Sprites

Artwork and 3D models

Gen IX · Gen VII · Gen VI

Training

Catch rate
45 ≈5.9% with a Poké Ball at full HP

Breeding

Egg groups
Water 2Dragon
Gender
♂ 50%♀ 50%
Hatch time
5 egg cycles ≈1,530 steps (Gen IV–VII)

Males and females look different

Male Gyarados
♂ Male
Female Gyarados
♀ Female
HOME 3D model

Where to find

Mega Evolves in battle from Gyarados holding Gyaradosite.

Not found in the wild in the games we have location data for.

Locations cover Red & Blue to Sword & Shield (with its DLC) and Let’s Go. We don’t have them yet for Legends: Arceus, Brilliant Diamond & Shining Pearl, Scarlet & Violet and Legends: Z-A.