Pokémon-specific weakness guide
Hydreigon Weaknesses and Counters
This guide explains Hydreigon's defensive profile, including every weakness, resistance, immunity, and practical counter type based on its Dark / Dragon typing.

Hydreigon
#0635
Resistances (6)
Immunities (1)
Battle notes
- Hydreigon's Dark / Dragon typing is best attacked with Fairy (4x), Ice (2x), Fighting (2x). Start with those attacking types when choosing moves or counter Pokémon.
- Avoid relying on common Psychic, Fire, Water, Electric attacks unless they have unusually high power or a secondary purpose, because Hydreigon 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.
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
Hydreigon's base defensive typing is Dark / Dragon. 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.
Related guides
FAQ
What is Hydreigon weak to?
Hydreigon is weak to Fairy (4x), Ice (2x), Fighting (2x), Bug (2x), Dragon (2x).
Which attacking types are most practical against Hydreigon?
Fairy is the strongest listed attacking type against Hydreigon, dealing 4x damage.
Does Hydreigon'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.