Water/Ground strategy: one flaw, but it is a major one
Water/Ground looks almost perfect on a defensive summary: Electric does nothing, Fire and Steel are resisted, and Grass is the only attacking type that is super effective. The catch is severity. Grass lands for 4× damage, so a coverage move such as Energy Ball, Giga Drain, Leaf Storm, or even a surprise Tera Blast can end a promising switch-in. Treat the typing as an invitation to control the matchup, not a license to ignore its one answer.
Offensive plan
Water and Ground STAB give this pair practical pressure against Fire-, Rock-, Steel-, and Electric-based targets. Swampert illustrates the role well: it can provide bulk, Stealth Rock, and strong physical attacks without surrendering momentum to Electric-types. Ground attacks must still respect Flying and Levitate immunities, while Water attacks can be absorbed by common Water-type defenders. A coverage move, a double switch, or hazard chip is usually what turns favorable type coverage into a real breakthrough.
Counterplay and defensive risks
The direct answer is Grass, but good Water/Ground players plan for it. They may pivot immediately, carry Ice coverage, use a teammate to punish Grass-types, or rely on a Tera Type that changes the defensive calculation. If Grass is unavailable, use strong neutral special attacks and exploit limited recovery or Speed instead of feeding an Electric move into an immunity. Opponents should also account for item and ability; immunity to Electric says nothing about a specific Pokémon’s ability to take repeated Grass hits.
Team-building advice
A Water/Ground slot wants partners that reliably deter Grass attacks. Steel, Fire, Flying, Bug, Poison, and Dragon Pokémon can help depending on the format and movesets; a Grass-resistant pivot that invites Electric attacks creates a particularly clean loop. Conversely, avoid giving the team only one Grass answer. Test the full spread in the Team Calculator, then compare this high-reward defensive profile with other top combinations in the best combinations guide.
Read the best Pokémon type combinations guide for a side-by-side defensive comparison.
Frequently asked questions
What is Water/Ground 4× weak to?
Grass is its only weakness and deals 4× damage under normal type rules.
Is Water/Ground immune to Electric?
Yes. Ground grants a complete Electric immunity, even though Water by itself is weak to Electric.