
N°0578 · Generation 5
Duosion
Since its two brains are rarely on the same wavelength, it is impossible to predict its behavior.
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Characteristics
- Height:
- 0.60
- Weight:
- 8.00
Base stats
Total: 370Combat strengths and weaknesses
Damage multiplier taken by Duosion depending on the attacking move's type. ×2 and ×4 are the attacks to avoid.
Resistances - weak attacks


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Detailed information
Overview of Meios
Meios is a Pokémon of the Psychic type introduced in the fifth generation. Its English name is Duosion and its Japanese name is ダブラン. It is the direct evolution of Nucleos, making it a key stage for players seeking to reach Symbios. Meios stands out for its unusual appearance composed of two cell nuclei, an important detail both in the Pokédex and on collectible cards where its design is instantly recognizable.
In the main games, Meios is often used as an intermediate Pokémon focused on special attacks. Its role is clear: to prepare a Psychic-oriented team capable of inflicting heavy damage at range while benefiting from good strategic potential in battle.
Type and Role in Battle
Meios is exclusively of the Psychic type. This type gives it access to many powerful special attacks but also implies notable weaknesses against Ghost, Dark, and Bug types. In battle, Meios is primarily used as a special attacker, capable of surprising opponents thanks to a strong offensive power and a varied move set.
Its physical Defense remains limited, which forces players to protect it or use it in favorable situations. On the other hand, its Special Defense is decent, allowing it to absorb certain Psychic or Water attacks without too much risk.
Base Stats and Potential
The stats of Meios perfectly reflect its role. Its HP is average but sufficient for an intermediate Pokémon. Its Special Attack is high for its level, making it an excellent temporary choice before the final evolution. Its Speed remains low, a point to consider when choosing move sets and held items.
Main stat - high Special Attack
Secondary stat - decent Special Defense
Weak point - Speed and physical Defense
These values make Meios very dependent on the overall team strategy and the support of other faster or more resilient Pokémon.
Key Moves and TMs
Meios naturally learns several effective Psychic moves as it levels up. Psyshock, Psychic, and Signal Beam are among the most common options. Thanks to TMs, it can also access coverage moves such as Confuse Ray or Shadow Ball, useful against its natural weaknesses.
Competitive players particularly appreciate its ability to deal consistent damage, even without yet reaching the full power of Symbios. Used well, Meios can turn a battle against ill-prepared opponents.
Evolution and How to Obtain It
Meios evolves from Nucleos at a certain level, then itself evolves into Symbios later in the adventure. This evolution chain makes it an appreciated Pokémon in Black and White, where it is available in several specific areas.
For players seeking a reliable Psychic Pokémon during the mid-game, Meios represents an excellent balance between power and accessibility.
Meios in the Pokémon Card Game
In the Trading Card Game, Meios appears as an intermediate card with attacks based on Psychic damage and energy-related effects. While rarely at the center of a competitive deck, it remains interesting for complete collections and sets dedicated to the Nucleos line.
Its unusual design and its direct connection to a popular final evolution make Meios attractive to collectors looking to complete a coherent Pokédex entry both in the video games and in card form.



