Gengar is weak to Dark, Ghost, Psychic, and Ground attacks, so strong Pokémon of those types (like Mewtwo, Tyranitar, powerful Ground types, or even another Gengar) are very good against it.

what is strong against gengar – Quick Scoop

Gengar looks scary, but its Ghost/Poison typing gives it some clear weaknesses.

Gengar’s Type Weaknesses

Because Gengar is Ghost + Poison, it’s weak to four types.

  • Dark-type moves (super effective vs Ghost).
  • Ghost-type moves (Ghost is weak to itself).
  • Psychic-type moves (super effective vs Poison).
  • Ground-type moves (super effective vs Poison).

In most modern games and Pokémon GO, focusing on Dark, Psychic, and Ground attackers is the most reliable way to bring Gengar down.

Examples of Strong Counters

Here are some commonly cited strong Pokémon against Gengar in recent guides and raid discussions.

[3][5][7] [10][5][7][3] [5][7][3] [7][10][3][5]
Type Example Pokémon strong vs Gengar Why they’re good
Psychic Mewtwo, Alakazam, Espeon, Latios, Metagross Hit Gengar’s Poison typing super effectively; many have huge Special Attack / strong charge moves.
Dark Tyranitar, Mega Tyranitar, Mega Houndoom, Hydreigon Resist Ghost and Psychic moves, hit Gengar’s Ghost typing super effectively.
Ghost Gengar itself, Chandelure, Banette, Giratina forms Ghost moves are super effective; many Ghosts are high DPS attackers.
Ground Groudon, Rhyperior, Garchomp, Excadrill, Landorus Exploit Gengar’s Poison weakness; Ground types often shrug off Electric/Poison coverage.
If you’re playing Pokémon GO, guides specifically highlight high-level Ground, Psychic, Dark, and Ghost attackers like Mewtwo, Groudon, Tyranitar, and Chandelure as top Gengar raid counters.

Little Strategy Story: “How It Usually Plays Out”

Imagine you queue into a Gengar raid: the lobby fills with Mewtwos and big Ground types like Groudon and Garchomp. Gengar opens with Shadow Ball, which shreds any frail Psychic types that didn’t dodge, but Tyranitar and other Dark types barely flinch and keep biting away.

Then the host brings out Mega Gengar or Mega Tyranitar, boosting everyone’s damage of matching types, and suddenly Gengar’s HP starts free-falling. Even though Gengar is dangerous with coverage moves like Focus Blast, coordinated Dark, Psychic, Ghost, and Ground teams usually overwhelm it before it can wipe too many counters.

Quick Rules of Thumb

  • Use Dark, Ghost, Psychic, or Ground moves – anything else is usually wasting potential.
  • Bulky Dark or Ground types are safest into Shadow Ball / Sludge Bomb sets.
  • Glass-cannon Psychic and Ghost attackers do massive damage but may need dodging or backup.

So, if you’re wondering “what is strong against Gengar,” think: strong Dark, Ghost, Psychic, or Ground Pokémon with matching powerful moves – that’s your best shot.

TL;DR:
Gengar is weak to Dark, Ghost, Psychic, and Ground, so bring high-powered Pokémon of those types (like Mewtwo, Tyranitar, Groudon, Chandelure, or even another Gengar) with strong matching moves.

Information gathered from public forums or data available on the internet and portrayed here.