Abilities
MetaMons competitive notes
Mega Greninja is a water/dark-type Pokémon whose base stats lean toward Speed — at 630 BST it is a legendary-grade total for competitive play, with top speed tier (base 142) and a mixed attacking profile. Its Protean ability matters more than the raw numbers when it hits the field: check what it does before deciding between a sweeper, pivot, or support role for Mega Greninja. Build around what Mega Greninja actually threatens, not its in-game lore — start from its weaknesses and strongest STAB moves, then decide whether its Speed, bulk, or coverage justifies a team slot.
Mega Greninja is a Water/Dark-type Pokémon. Full weakness, resistance, and immunity breakdown below.
Mega Greninja is a Water/Dark-type, so it takes super-effective damage from Electric, Grass, Fighting, Bug, Fairy. It resists Fire, Water, Ice, Ghost, Dark, Steel. It is immune to Psychic.
- Electric2× damage
- Grass2× damage
- Fighting2× damage
- Bug2× damage
- Fairy2× damage
- Fire0.5× damage
- Water0.5× damage
- Ice0.5× damage
- Ghost0.5× damage
- Dark0.5× damage
- Steel0.5× damage
- Psychic0× damage
To counter Mega Greninja in competitive play, bring Pokémon that can hit back with Electric or Grass or Fighting or Bug or Fairy moves and can withstand its Water/Dark STAB attacks.
Want the full picture? See Mega Greninja's base stats, moveset, and evolution chain.