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No. 0578

Duosion

Mitosis Pokémon

Duosion official artwork
Official art

Duosion is a Psychic-type Pokémon, 2× weak to Bug, Ghost and Dark, with a base stat total of 370. It isn’t usable in Pokémon Champions’ Regulation M-C.

Psychic
Height
0.6 m 2′00″
Weight
8 kg 17.6 lbs
Base stat total
370 Higher than 34% of Pokémon
Introduced
Gen V Black & White
Abilities
Pokédex entryShield
Its brain has split into two, and the two halves rarely think alike. Its actions are utterly unpredictable.
See all 5 entries

Base stats

HP65140–172240–334
Atk4054–10176–196
Def5063–11294–218
SpA125130–194229–383
SpD6072–123112–240
Spe3045–9058–174
Total370Higher than 34% of Pokémon
HP65Atk40Def50Spe30SpD60SpA125

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 SpA.

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

Type matchups

Weak to

2×
BugDarkGhost

Resists

½×
FightingPsychic
Takes normal damage from 13 types
NormalFlyingPoisonGroundRockSteelFireWaterGrassElectricIceDragonFairy

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 30); Scarf and Tailwind use the Max+ value.

Max+90Max82No SP50Min45Scarf135Tailwind180

At max Speed, Duosion outspeeds 5 of the 30 most used Pokémon in Champions VGC on Showdown, and ties 2.

Speed at Lv 50 in Pokémon Champions: Duosion 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
143BasculegionJolly · 32 SP · #6 on Showdown
128PelipperTimid · 32 SP · #12 on Showdown
120VolcaronaBold · 0 SP · #25 on Showdown
105RillaboomAdamant · 0 SP · #1 on Showdown
101MiloticCalm · 0 SP · #15 on Showdown
95SylveonModest · 15 SP · #18 on Showdown
94Female IndeedeeRelaxed · 0 SP · #7 on Showdown
90Duosion · Max+32 SP, Speed-raising alignment
90PolitoedCalm · 0 SP · #22 on Showdown
90SinistchaBold · 0 SP · #24 on Showdown
85ArmarougeQuiet · 0 SP · #27 on Showdown
82Duosion · Max32 SP, neutral alignment
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
50Duosion · No SP0 SP, neutral alignment

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

Smogon · Showdown On Showdown

Not used in the tracked Showdown formats this month.

Other Showdown formats Scarlet & Violet, with Tera
SV SinglesNFE

Evolution

  1. #0577SolosisPsychic
    1. Level 32
      #0578DuosionPsychic
      1. Level 41
        #0579ReuniclusPsychic

Moves

Level up 15

1Confusion10% chance to confuse the target.PsychicSpec50100%25
1EndeavorLowers the target's HP to the user's HP.NormalPhys—100%5
1ProtectPrevents moves from affecting the user this turn.NormalStatus——10
1RecoverHeals the user by 50% of its max HP.NormalStatus——5
12Psybeam10% chance to confuse the target.PsychicSpec65100%20
16CharmLowers the target's Attack by 2.FairyStatus—100%20
20PsyshockDamages target based on Defense, not Sp. Def.PsychicSpec80100%10
24Light ScreenFor 5 turns, special damage to allies is halved.PsychicStatus——30
24ReflectFor 5 turns, physical damage to allies is halved.PsychicStatus——20
28Ally SwitchUser and ally swap positions; using again can fail.PsychicStatus——15
35Pain SplitShares HP of user and target equally.NormalStatus——20
40Psychic10% chance to lower the target's Sp. Def by 1.PsychicSpec90100%10
46Skill SwapThe user and the target trade Abilities.PsychicStatus——10
52Future SightHits two turns after being used.PsychicSpec120100%10
58Wonder RoomFor 5 turns, all Defense and Sp. Def stats switch.PsychicStatus——10

TM / HM / TR 43

TM02CharmLowers the target's Attack by 2.FairyStatus—100%20
TM07ProtectPrevents moves from affecting the user this turn.NormalStatus——10
TM16Psybeam10% chance to confuse the target.PsychicSpec65100%20
TM17Confuse RayConfuses the target.GhostStatus—100%10
TM25FacadePower doubles if user is burn/poison/paralyzed.NormalPhys70100%20
TM32SwiftThis move does not check accuracy. Hits foes.NormalSpec60—20
TM36Rock Tomb100% chance to lower the target's Speed by 1.RockPhys6095%15
TM41Stored Power + 20 power for each of the user's stat boosts.PsychicSpec20100%10
TM42Night ShadeDoes damage equal to the user's level.GhostSpec—100%15
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
TM54PsyshockDamages target based on Defense, not Sp. Def.PsychicSpec80100%10
TM59Zen Headbutt20% chance to make the target flinch.PsychicPhys8090%15
TM70Sleep TalkUser must be asleep. Uses another known move.NormalStatus——10
TM74ReflectFor 5 turns, physical damage to allies is halved.PsychicStatus——20
TM75Light ScreenFor 5 turns, special damage to allies is halved.PsychicStatus——30
TM82Thunder WaveParalyzes the target.ElectricStatus—90%20
TM85RestUser sleeps 2 turns and restores HP and status.PsychicStatus——5
TM86Rock Slide30% chance to make the foe(s) flinch.RockPhys7590%10
TM92ImprisonNo foe can use any move known by the user.PsychicStatus——10
TM93Flash Cannon10% chance to lower the target's Sp. Def by 1.SteelSpec80100%10
TM98Skill SwapThe user and the target trade Abilities.PsychicStatus——10
TM103SubstituteUser takes 1/4 its max HP to put in a substitute.NormalStatus——10
TM104Iron DefenseRaises the user's Defense by 2.SteelStatus——15
TM109TrickUser switches its held item with the target's.PsychicStatus—100%10
TM114Shadow Ball20% chance to lower the target's Sp. Def by 1.GhostSpec80100%15
TM119Energy Ball10% chance to lower the target's Sp. Def by 1.GrassSpec90100%10
TM120Psychic10% chance to lower the target's Sp. Def by 1.PsychicSpec90100%10
TM122EncoreTarget repeats its last move for its next 3 turns.NormalStatus—100%5
TM129Calm MindRaises the user's Sp. Atk and Sp. Def by 1.PsychicStatus——20
TM130Helping HandOne adjacent ally's move power is 1.5× this turn.NormalStatus——20
TM138Psychic Terrain5 turns. Grounded: +Psychic power, priority-safe.PsychicStatus——10
TM161Trick RoomGoes last. For 5 turns, turn order is reversed.PsychicStatus——5
TM166Thunder30% chance to paralyze. Can't miss in rain.ElectricSpec11070%10
TM171Tera BlastIf Terastallized: Phys. if Atk > SpA, type = Tera.NormalSpec80100%10
TM178Gravity5 turns: no Ground immunities, 1.67× accuracy.PsychicStatus——5
TM180Gyro BallMore power the slower the user than the target.SteelPhys—100%5
TM202Pain SplitShares HP of user and target equally.NormalStatus——20
TM203Psych UpCopies the target's current stat stages.NormalStatus——10
TM205EndeavorLowers the target's HP to the user's HP.NormalPhys—100%5
TM217Future SightHits two turns after being used.PsychicSpec120100%10
TM218Expanding ForceUser on Psychic Terrain: 1.5× power, hits foes.PsychicSpec80100%10

Egg moves 3

EggAcid ArmorRaises the user's Defense by 2.PoisonStatus——20
EggAstonish30% chance to make the target flinch.GhostPhys30100%15
EggConfuse RayConfuses the target.GhostStatus—100%10

Biology

If its two brains think the same thing, its psychic power is doubled. However, the two halves rarely think alike, and its actions are utterly unpredictable.

Design & origin

Duosion is based on the splitting of cells.

Adapted from Wikipedia: List of generation V 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

Mitosis Pokémon
Unova · Black & White
Color
Green
—
Original Unova#084Updated Unova#140Coastal Kalos#116Galar#271Crown Tundra#055Blueberry#149

  1. Its brain has split into two, and the two halves rarely think alike. Its actions are utterly unpredictable.

    Shield

  2. Its psychic power can supposedly cover a range of more than half a mile—but only if its two brains can agree with each other.

    Sword

  3. When their two divided brains think the same thoughts, their psychic power is maximized.

    Black 2 · White 2 · Y · Alpha Sapphire

  4. When their brains, now divided in two, are thinking the same thoughts, these Pokémon exhibit their maximum power.

    White

  5. Since they have two divided brains, at times they suddenly try to take two different actions at once.

    Black · X · Omega Ruby

Names around the world

English
Duosion
Japanese
ダブラン
Japanese (romaji)
Doublan
Korean
듀란
Chinese (Traditional)
雙卵細胞球
Chinese (Simplified)
双卵细胞球
French
Méios
German
Mitodos
Spanish
Duosion
Italian
Duosion

Sprites

Artwork and 3D models

Gen IX · Gen VIII · Gen VII · Gen VI · Gen V

Training

2 SpA
100 ≈13.1% with a Poké Ball at full HP
70
130
Medium Slow

Breeding

Amorphous
♂ 50%♀ 50%
20 egg cycles ≈5,355 steps (Gen IV–VII)

Where to find

Evolves from Solosis: Level 32.

Shield: The Crown Tundra 6 areas
  • Ballimere Lake (Max Den O)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
  • Frostpoint FieldWalking in the overworld · Lv 60–65
  • Giant's Bed (Max Den R)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
  • Path to the Peak (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
  • Slippery SlopeWalking in the overworld · Lv 60–65
  • Snowslide Slope (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
Shield 4 areas
  • Dusty BowlWalking in the overworld · Lv 42–60
  • Giant's Mirror (Area 2)Walking in the overworld · Lv 42–60
  • Stony Wilderness (Max Den K)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
  • Watchtower Ruins (Max Den A)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
Moon 1 area
  • Route 16Island Scan · Lv 33
Sun 1 area
  • Route 16Island Scan · Lv 33
Y 1 area
  • Friend Safari (Psychic)Walking in tall grass or a cave · Lv 30
X 1 area
  • Friend Safari (Psychic)Walking in tall grass or a cave · Lv 30
White 2 3 areas
  • Road 9Walking in dark grass, Walking in tall grass or a cave · Lv 37–43
  • Strange House (1F)Walking in tall grass or a cave · Lv 34
  • Strange House (B1F)Walking in tall grass or a cave · Lv 33–34
White 1 area
  • Road 9Walking in dark grass, Walking in tall grass or a cave · Lv 31–39

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.