Metamons
Mega Greninja official artwork
WaterDark

#10294

Ninja Pokémon

Mega Greninja

Height1.5 m
Weight40.0 kg
BST630

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 Weakness — What Beats Mega Greninja?

Mega Greninja is a Water/Dark-type Pokémon. Full weakness, resistance, and immunity breakdown below.

What is Mega Greninja weak to?

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
Mega Greninja resistances
  • Fire0.5× damage
  • Water0.5× damage
  • Ice0.5× damage
  • Ghost0.5× damage
  • Dark0.5× damage
  • Steel0.5× damage
Mega Greninja immunities
  • Psychic0× damage
How to counter Mega Greninja

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.

Electric-type counters

Grass-type counters

Fighting-type counters

Want the full picture? See Mega Greninja's base stats, moveset, and evolution chain.