What is a Water Ground Pokémon Weak To?

A Water/Ground-type Pokémon is exclusively and severely weak to Grass-type moves, taking a massive 4x damage from them.

The Critical Vulnerability: Grass

Water and Ground are powerful types, but their combination creates a singular, critical weakness to Grass-type attacks. Both Water-type Pokémon and Ground-type Pokémon are individually weak to Grass. When these types are combined, the weakness multiplies, resulting in quadruple (4x) damage from any Grass-type move.

This extreme vulnerability means that even a moderately powerful Grass-type attack can often result in a one-hit knockout (OHKO) for a Water/Ground Pokémon, regardless of its defensive stats.

Notable Water/Ground Pokémon Examples

Several popular and strong Pokémon possess the Water/Ground typing, making understanding this weakness crucial for trainers:

Swampert (and its Mega Evolution)
Quagsire
Whiscash
Gastrodon (East Sea and West Sea forms)
Seismitoad

Strategic Implications and Counterplay

When facing a Water/Ground-type Pokémon, trainers should prioritize the following strategies:

Utilize Potent Grass-type Attacks: Employ moves such as Energy Ball, Leaf Storm, Giga Drain, Power Whip, or Frenzy Plant for maximum damage.
Identify Threatening Opponents: Be mindful of powerful Grass-type Pokémon like Rillaboom, Roserade, Venusaur, or Serperior, as they can easily dispatch Water/Ground threats.
Consider Coverage Moves: Even non-Grass Pokémon can carry Grass-type coverage moves (e.g., Grass Knot, Solar Beam) specifically to deal with Water/Ground types.

Conversely, trainers using a Water/Ground Pokémon must be extremely cautious around any Grass-type threats. Common defensive strategies include:

Switching Out: Immediately withdraw the Water/Ground Pokémon when a Grass-type opponent appears.
Strategic Abilities: Pokémon like Gastrodon can have the ability Storm Drain, which draws in Water-type attacks and boosts their Special Attack, but this does not mitigate their Grass weakness.
Terastallization (in Scarlet/Violet): Changing the Pokémon's type to remove the Grass weakness can be a desperate, but effective, last resort.

Resistances and Immunities

Despite their critical weakness to Grass, Water/Ground-type Pokémon boast a remarkable defensive profile against several other types, including an immunity and multiple resistances:

Immunity (0x damage):
- Electric: Due to their Ground typing, Water/Ground Pokémon take no damage from Electric-type attacks.
Quadruple Resistance (0.25x damage):
- Fire: Both Water and Ground types resist Fire, leading to a strong 4x resistance.
Double Resistance (0.5x damage):
- Poison: Ground-type Pokémon resist Poison-type attacks.
- Rock: Ground-type Pokémon resist Rock-type attacks.
- Steel: Water-type Pokémon resist Steel-type attacks.
- Water: Water-type Pokémon resist Water-type attacks.

Water/Ground Type Effectiveness Summary

The table below summarizes how a Water/Ground-type Pokémon interacts with all other types:

Type	Effectiveness	Explanation
Grass	4x Weakness	Both Water and Ground are individually weak to Grass.
Electric	0x Immunity	Ground typing grants immunity to Electric-type moves.
Fire	0.25x Resistance	Both Water and Ground resist Fire, resulting in quadruple resistance.
Poison	0.5x Resistance	Ground typing resists Poison-type moves.
Rock	0.5x Resistance	Ground typing resists Rock-type moves.
Steel	0.5x Resistance	Water typing resists Steel-type moves.
Water	0.5x Resistance	Water typing resists Water-type moves.
Normal	1x Normal
Fighting	1x Normal
Flying	1x Normal
Ground	1x Normal
Psychic	1x Normal
Bug	1x Normal
Ghost	1x Normal
Ice	1x Normal
Dragon	1x Normal
Dark	1x Normal
Fairy	1x Normal

Ora