Stats & Training
The stat bars tell the story: Sp. Atk carries everything and Speed's dead weight. But this Mitosis Pokemon still yields 2 Sp. Atk EVs per fight on a 1.06M XP medium-slow curve.
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.
Its brain has split into two, and the two halves rarely think alike. Its actions are utterly unpredictable.
Duosion Weakness
Type-wise, Duosion takes extra damage from Bug, Ghost, and Dark. Not too many gaps in the chart, 3 weaknesses to account for.
| Damage | Types |
|---|---|
| 2x (Weak) | Bug, Ghost, Dark |
| 0.5x (Resist) | Fighting, Psychic |
 Chien-Pao DarkIce | S | |
Obtain MethodWest Province Area One Interact Encounter Available Moves Moves
Damage vs Duosion View Chien-Pao builds →Dark Pulse 2x91-107%KO Throat Chop 2x131-154%KO Crunch 2x131-154%KO Night Slash 2x114-135%KO | ||
 Ting-Lu DarkGround | S | |
Obtain MethodSocarrat Trail Interact Encounter Available Moves Moves
Damage vs Duosion View Ting-Lu builds →Dark Pulse 2x64-75% Throat Chop 2x121-144%KO Hex 2x34-40% Snarl 2x44-51% | ||
 Tyranitar RockDark | A | |
Available Moves Moves
Damage vs Duosion View Tyranitar builds →Dark Pulse 2x94-111%KO Crunch 2x144-169%KO Bite 2x109-129%KO Snarl 2x65-77% | ||
 Hydreigon DarkDragon | B | |
Available Moves Moves
Damage vs Duosion View Hydreigon builds →Crunch 2x116-137%KO Dark Pulse 2x118-139%KO U-turn 2x69-81% Bite 2x89-105%KO | ||
 Wo-Chien DarkGrass | B | |
Obtain MethodSouth Province Area One Interact Encounter Available Moves Moves
Damage vs Duosion View Wo-Chien builds →Foul Play 2x116-137%KO Pollen Puff 2x70-83% Dark Pulse 2x94-111%KO Knock Off 2x80-94% | ||
In Scarlet & Violet, Volcarona's Heat Wave hits Duosion for 67-79%. Kingambit's Sucker Punch also KOs at 135-159%.
 Volcarona BugFire | A | |
Recommended Build AbilityFlame Body ItemGrassyseed NatureModest Moves
Damage vs Duosion View Volcarona builds →Heat Wave67-79% | ||
 Annihilape FightingGhost | A | |
Recommended Build AbilityDefiant ItemSitrus Berry NatureJolly Moves
Damage vs Duosion View Annihilape builds →Drain Punch25-30% | ||
 Kingambit DarkSteel | A | |
Recommended Build AbilitySupremeoverlord ItemLeftovers NatureAdamant Moves
Damage vs Duosion View Kingambit builds →Sucker Punch 2x135-159%KO | ||
 Dragapult DragonGhost | A | |
Recommended Build AbilityInfiltrator ItemChoice Specs NatureTimid Moves
Damage vs Duosion View Dragapult builds →U Turn 2x55-65% Draco Meteor119-140%KO Shadow Ball 2x147-173%KO | ||
Scarlet & Violet Evolution
Duosion sits between Solosis and Reuniclus in this three-stage line. Not the final form yet. For breeding, average hatch time with plenty of partners via one egg group. HP has grown the most so far (+20), but there's still another 120 stats to gain in the final evolution. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Duosion to get Solosis eggs easily using 53 partners from the Indeterminate egg group.
Scarlet & Violet Duosion Best Moveset
The Sash lets Duosion ignore defensive shortcomings for one turn. Use that turn to deal early damage, and Magic Guard squeezes extra value from the position. Max HP and Sp. Atk EVs push damage output.
Best Build
Duosion best EVs are HP and Sp. Atk
Special Tank Moveset
- Shadow Ball
- Psychic
- Trick Room
- Endeavor
Recommended Teammates
Wall Moveset
- Pain Split
- Reflect
- Light Screen
- Thunder Wave
Recommended Teammates
Doubles Special Attacker Moveset
- Trick Room
- Expanding Force
- Shadow Ball
- Tera Blast
Recommended Teammates
Doubles Wall Moveset
- Psychic
- Trick Room
- Recover
- Protect
Recommended Teammates
Moves
Most of Duosion's flexibility comes from TMs. Same-type output runs through Future Sight and Psychic, but Normal and Grass and the rest of the TM pool push it from predictable to genuinely threatening.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Duosion in Scarlet & Violet
Duosion Guide
At 370 BST, Duosion is firmly in pre-evolution territory. Evolve it into Reuniclus before bringing it to any serious fight.
In Scarlet & Violet, Duosion's biggest threats include Heracross (Bug), Chandelure (Ghost), and Tyranitar (Dark), all carrying super-effective STAB moves. At base 30 Speed, Duosion won't outrun any of these threats so switching to a resist is usually the safer play.
Duosion gets Magic Guard, Overcoat, and Regenerator. But Magic Guard is the one that matters. It's the centerpiece of every viable set. Build around that.
In Scarlet & Violet, Regenerator is the hidden ability. It heals for 1/3 max HP upon switching out. Worth hunting for if you want Duosion to compete at a higher level.
Game Availability
Since Black & White, Duosion has been obtainable in 8 games. A Generation 5 debut means a shorter history, but Duosion has appeared steadily across every generation since.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RB
Red & Blue - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3FRLG
FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 4DP
Diamond & Pearl - Gen 5BWDebut
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7SM
Sun & Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves