Pokémon-specific weakness guide

Mega Gengar Weaknesses and Counters

This guide explains Mega Gengar's defensive profile, including every weakness, resistance, immunity, and practical counter type based on its Ghost / Poison typing.

Ghost Poison

Mega Gengar

#0094

Weaknesses (4)

Ground×2 Psychic×2 Ghost×2 Dark×2

Resistances (4)

Poison×0.25 Bug×0.25 Grass×0.5 Fairy×0.5

Immunities (2)

Normal×0 Fighting×0

Battle notes

Mega Gengar's Ghost / Poison typing is best attacked with Ground (2x), Psychic (2x), Ghost (2x). Start with those attacking types when choosing moves or counter Pokémon.
Avoid relying on common Normal, Fighting, Poison, Bug attacks unless they have unusually high power or a secondary purpose, because Mega Gengar resists or ignores those matchups.
This guide uses the modern Gen 6+ type chart only. Abilities, held items, Terastallization, weather, fields, and special move rules can still change real battle outcomes.

Best counter types

These attacking types hit the defender for super-effective damage under the modern Gen 6+ type chart.

Ground×2 Psychic×2 Ghost×2 Dark×2

Example Pokémon with Effective Types

These are examples of Pokémon associated with super-effective attacking types, not a ranked competitive counter list.

Defensive typing summary

Mega Gengar's base defensive typing is Ghost / Poison. The weakness chart multiplies both types when a Pokémon has two types, so a matchup can become 4x, 2x, 1x, 0.5x, 0.25x, or 0x.

FAQ

What is Mega Gengar weak to?

Mega Gengar is weak to Ground (2x), Psychic (2x), Ghost (2x), Dark (2x).

Which attacking types are most practical against Mega Gengar?

Ground, Psychic, Ghost, and Dark are tied as the strongest attacking types against Mega Gengar, each dealing 2x damage.

Does Mega Gengar's ability change these weaknesses?

This page uses base defensive typing only. Abilities, held items, Terastallization, weather, fields, and special move rules can change actual battle outcomes.