List of Pokémon With a Double (4×) Weakness

Some Pokémon are weak to a type twice over. When both of a Pokémon's types are weak to the same attacking type, the multipliers stack — 2× × 2× = 4× damage. That is a double weakness, and it is the fastest way to lose a Pokémon you love. Here is how it happens and a list of the most common offenders.

What is a double weakness?

Every attacking move is multiplied by how effective it is against the target's type. A single-type weakness is 2×. But a Pokémon has up to two types, and both can be weak to the same attacker:

• 2× × 2× = 4× — a double (quadruple-damage) weakness
• This only happens on dual-type Pokémon
• A well-placed super-effective hit at 4× will usually OHKO, even without a type-boosted move

You can see any Pokémon's exact multipliers on its page — for example Charizard's weaknesses — or drop your whole team into the Pokémon team builder to catch stacked weaknesses across all six at once.

List of Pokémon with a 4× double weakness

| Pokémon | Types | 4× weak to | | --------------------------------- | --------------- | ---------------- | | Charizard | Fire / Flying | Rock | | Gyarados | Water / Flying | Electric | | Dragonite | Dragon / Flying | Ice | | Salamence | Dragon / Flying | Ice | | Garchomp | Dragon / Ground | Ice | | Tyranitar | Rock / Dark | Fighting | | Weavile | Dark / Ice | Fighting | | Scizor | Bug / Steel | Fire | | Ferrothorn | Grass / Steel | Fire | | Abomasnow | Grass / Ice | Fire | | Rhyperior | Ground / Rock | Water, Grass | | Aggron | Steel / Rock | Fighting, Ground |

Rhyperior and Aggron are the scariest of all — they each have two separate 4× weaknesses.

Why it happens: two types, one shared weakness

A double weakness appears when neither type covers the other's flaw. Charizard is Fire/Flying; both Fire and Flying are weak to Rock, so nothing cancels it and Rock lands at 4×. Compare that to a Pokémon whose second type resists the first's weakness — a Water/Ground Pokémon takes only 1× from Grass because Water resists it, so no stacked weakness forms.

If you want to understand the stacking rules in full, read our Pokémon type chart guide or open the full 18-type chart.

How to play around a double weakness

A 4× weakness is not a dealbreaker — plenty of these Pokémon are top-tier — but you have to respect it:

1. Know the trigger type. If you carry Charizard, assume every opponent has a Rock move ready.
2. Bring a switch-in. Pair the Pokémon with a teammate that resists or is immune to the 4× type, so you can pivot out safely.
3. Watch entry hazards. Stealth Rock is Rock-type and does 50% to anything 4× weak to Rock the moment it switches in — brutal for Charizard and Gyarados.
4. Check the whole team, not one Pokémon. Two Pokémon sharing the same 4× weakness is a losing pattern. The team builder flags any attacking type that threatens three or more of your team.

Build around weaknesses, not against them

Double weaknesses are a feature of the type system, not a bug to avoid entirely. The winning approach is coverage: put your 4×-weak Pokémon next to teammates that wall its trigger type. Drop your six into the Pokémon team builder and read the combined weakness table — if one column lights up across your team, that is the type a smart opponent will aim for.

Build a team and check its weaknesses → or browse the full type chart →.