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.
Since they have two divided brains, at times they suddenly try to take two different actions at once.
When their brains, now divided in two, are thinking the same thoughts, these Pokémon exhibit their maximum power.
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 |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
 Liepard Dark | C | |
Available Moves Moves
Damage vs Duosion View Liepard builds →Thief 2x76-90% Snarl 2x64-77% Pursuit 2x54-64% | ||
 Scraggy DarkFighting | D | |
Available Moves Moves
Damage vs Duosion View Scraggy builds →Feint Attack 2x69-81% Snarl 2x36-43% Payback 2x57-69% | ||
 Zorua Dark | D | |
Obtain MethodCastelia City Gift Available Moves Moves
Damage vs Duosion View Zorua builds →Feint Attack 2x61-73% Thief 2x61-73% Snarl 2x57-69% Pursuit 2x43-51% | ||
 Swadloon BugGrass | D | |
Available Moves Moves
Damage vs Duosion View Swadloon builds →Bug Bite 2x61-73% Struggle Bug 2x40-47% | ||
 Whirlipede BugPoison | D | |
Available Moves Moves
Damage vs Duosion View Whirlipede builds →Bug Bite 2x54-64% Struggle Bug 2x36-43% Pursuit 2x26-31% | ||
Liepard Dark | C | |
Available Moves Moves
Damage vs Duosion View Liepard builds →Shadow Ball 2x56-68% Thief 2x73-86% Snarl 2x60-71% Pursuit 2x50-60% | ||
 Cofagrigus Ghost | C | |
Available Moves Moves
Damage vs Duosion View Cofagrigus builds →Shadow Ball 2x91-109%KO Hex 2x76-90% Ominous Wind 2x70-83% Thief 2x34-40% | ||
 Krokorok GroundDark | D | |
Available Moves Moves
Damage vs Duosion View Krokorok builds →Bite 2x70-83% Assurance 2x70-83% Thief 2x70-83% Snarl 2x38-45% | ||
Scraggy DarkFighting | D | |
Available Moves Moves
Damage vs Duosion View Scraggy builds →Feint Attack 2x66-79% Snarl 2x35-41% Payback 2x54-64% | ||
Zorua Dark | D | |
Obtain MethodCastelia City Gift Available Moves Moves
Damage vs Duosion View Zorua builds →Shadow Ball 2x53-63% Feint Attack 2x60-71% Thief 2x60-71% Snarl 2x56-68% | ||
Liepard Dark | C | |
Available Moves Moves
Damage vs Duosion View Liepard builds →Shadow Ball 2x60-71% Assurance 2x76-90% Thief 2x76-90% Snarl 2x62-73% | ||
Cofagrigus Ghost | C | |
Available Moves Moves
Damage vs Duosion View Cofagrigus builds →Shadow Ball 2x96-113%KO Hex 2x79-93% Ominous Wind 2x73-87% Thief 2x33-40% | ||
Krokorok GroundDark | D | |
Available Moves Moves
Damage vs Duosion View Krokorok builds →Crunch 2x96-113%KO Bite 2x73-87% Assurance 2x73-87% Thief 2x73-87% | ||
Scraggy DarkFighting | D | |
Available Moves Moves
Damage vs Duosion View Scraggy builds →Feint Attack 2x68-80% Snarl 2x33-40% Payback 2x57-67% | ||
Zorua Dark | D | |
Obtain MethodCastelia City Gift Available Moves Moves
Damage vs Duosion View Zorua builds →Foul Play 2x93-110%KO Shadow Ball 2x57-67% Feint Attack 2x62-73% Thief 2x62-73% | ||
Liepard Dark | C | |
Available Moves Moves
Damage vs Duosion View Liepard builds →Shadow Ball 2x60-71% Shadow Claw 2x60-71% Assurance 2x78-92% Thief 2x78-92% | ||
 Leavanny BugGrass | C | |
Available Moves Moves
Damage vs Duosion View Leavanny builds →X-Scissor 2x116-137%KO Shadow Claw 2x67-79% Bug Bite 2x88-104%KO Struggle Bug 2x48-56% | ||
Krokorok GroundDark | D | |
Available Moves Moves
Damage vs Duosion View Krokorok builds →Crunch 2x98-116%KO Shadow Claw 2x56-67% Bite 2x75-89% Assurance 2x75-89% | ||
Scraggy DarkFighting | D | |
Available Moves Moves
Damage vs Duosion View Scraggy builds →Feint Attack 2x70-83% Snarl 2x35-42% Payback 2x57-68% | ||
Zorua Dark | D | |
Obtain MethodCastelia City Gift Available Moves Moves
Damage vs Duosion View Zorua builds →Foul Play 2x98-116%KO Shadow Ball 2x55-65% Feint Attack 2x62-74% Thief 2x62-74% | ||
Liepard Dark | C | |
Available Moves Moves
Damage vs Duosion View Liepard builds →Shadow Ball 2x58-68% Shadow Claw 2x58-68% Assurance 2x73-86% Thief 2x73-86% | ||
Leavanny BugGrass | C | |
Available Moves Moves
Damage vs Duosion View Leavanny builds →X-Scissor 2x112-132%KO Shadow Claw 2x66-77% Bug Bite 2x85-100%KO Struggle Bug 2x48-57% | ||
Krokorok GroundDark | D | |
Available Moves Moves
Damage vs Duosion View Krokorok builds →Crunch 2x94-111%KO Shadow Claw 2x55-65% Bite 2x71-84% Assurance 2x71-84% | ||
Scraggy DarkFighting | D | |
Available Moves Moves
Damage vs Duosion View Scraggy builds →Crunch 2x86-103%KO Feint Attack 2x66-78% Snarl 2x34-41% Payback 2x55-65% | ||
Zorua Dark | D | |
Obtain MethodCastelia City Gift Available Moves Moves
Damage vs Duosion View Zorua builds →Foul Play 2x92-108%KO Shadow Ball 2x55-65% Feint Attack 2x59-70% Thief 2x59-70% | ||
Liepard Dark | C | |
Available Moves Moves
Damage vs Duosion View Liepard builds →Shadow Ball 2x60-70% Night Slash 2x88-103%KO Shadow Claw 2x58-69% Assurance 2x77-91% | ||
Krokorok GroundDark | D | |
Available Moves Moves
Damage vs Duosion View Krokorok builds →Foul Play 2x112-133%KO Crunch 2x93-111%KO Shadow Claw 2x56-66% Bite 2x70-84% | ||
Scraggy DarkFighting | D | |
Available Moves Moves
Damage vs Duosion View Scraggy builds →Crunch 2x88-103%KO Feint Attack 2x66-79% Snarl 2x33-39% Payback 2x56-66% | ||
 Houndour DarkFire | D | |
Available Moves Moves
Damage vs Duosion View Houndour builds →Foul Play 2x88-103%KO Shadow Ball 2x56-66% Bite 2x56-66% Feint Attack 2x56-66% | ||
Zorua Dark | D | |
Obtain MethodCastelia City Gift Available Moves Moves
Damage vs Duosion View Zorua builds →Foul Play 2x93-111%KO Shadow Ball 2x56-66% Feint Attack 2x60-71% Thief 2x60-71% | ||
In Black & White, Volcarona can KO Duosion with Fire Blast (103-122%). Jellicent deals 42-50% with Scald.
 Volcarona BugFire | A | |
Recommended Build AbilityFlame Body ItemLum Berry NatureTimid Moves
Damage vs Duosion View Volcarona builds →Giga Drain47-56% Fire Blast103-122%KO | ||
 Genesect BugSteel | A | |
Bug is super effective against DuosionView Genesect → | ||
 Jellicent WaterGhost | B | |
Recommended Build AbilityWaterabsorb ItemLeftovers NatureTimid Moves
Damage vs Duosion View Jellicent builds →Scald42-50% | ||
 Hydreigon DarkDragon | B | |
Recommended Build AbilityLevitate ItemChoice Scarf NatureTimid Moves
Damage vs Duosion View Hydreigon builds →Dark Pulse 2x143-168%KO Draco Meteor115-136%KO Fire Blast65-77% Flamethrower54-63% | ||
Black & White Evolution
Duosion sits between Solosis and Reuniclus in this three-stage line. Not the final form yet. For breeding, average hatch time with a decent partner pool 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 45 partners from the Indeterminate egg group. Notable egg moves include Acid Armor, Astonish, Confuse Ray and 4 more.
Black & White Duosion Best Moveset
Best Build
No build content available for this Pokemon in Gen 5.
Try selecting a different game/generation filter, or check back later.
Moves
The egg pool carries weight here. Acid Armor and Astonish aren't available any other way for Duosion, and they meaningfully change what it threatens. Stack those on top of Future Sight and Dream Eater for solid options.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Duosion in Black & White
Duosion starts showing up in late-game routes at high spawn rates across 2 encounter spots. The list below is sorted so you can pick what fits your current progress without scrolling through everything.
Where To Catch Duosion in Black & White
Solosis is your first catch on the way to Duosion. You'll find walking encounters from Lv. 19-39 across 6 total spots in the chain.
Step 1Catch SolosisRoute 16Grass Lv.19-22 RouteCommonMidAnyRoute 5Grass Lv.19-22 RouteCommonMidAnyRoute 16Grass Lv.22-25 RouteCommonMidAnyDouble grassRoute 5Grass Lv.22-25 RouteCommonMidAnyDouble grass
Step 2Duosion ✓Route 9Grass Lv.31-34 RouteCommonLateAnyRoute 9Grass Lv.36-39 RouteCommonLateAnyDouble grassor evolve from Solosis (Step 1)
Duosion Guide
At 370 BST, Duosion is firmly in pre-evolution territory. Evolve it into Reuniclus before bringing it to any serious fight.
In Black & White, 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 Black & White, 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