TL;DR
- Dual-type Pokemon can have up to 7 different weaknesses due to type combination vulnerabilities
- Grass/Psychic types like Exeggutor face the highest number of exploitable weaknesses
- Understanding type interactions is crucial for both offensive strategy and defensive team building
- Proper move coverage and ability selection can mitigate type disadvantage situations
- Strategic team composition should balance type coverage rather than eliminate all weaknesses

The Pokemon type effectiveness chart serves as an essential strategic tool that trainers must master to succeed in any Pokemon game format. From main series titles to mobile games like Pokemon GO, understanding these interactions determines battle outcomes across all gaming platforms.
This comprehensive chart displays offensive and defensive relationships between all 18 Pokemon types. The classic starter triangle demonstrates this perfectly: Fire overwhelms Grass, which dominates Water, which extinguishes Fire. Learning these fundamental relationships represents the first critical step toward competitive proficiency.
Early game progression often hinges on starter selection decisions. In recent titles like Pokemon Scarlet and Violet, choosing Quaxly as your starter creates significant challenges since its Water typing proves effective against only one of the eight Gym Leaders.
The current roster includes 18 distinct Pokemon types, though this system has evolved significantly since Generation I. Dark and Steel types debuted in Generation II, while Fairy type emerged in Generation VI specifically to counter dominant Dragon types. With this balanced number of types, the chart achieves comprehensive coverage with clearly defined strengths and vulnerabilities for each category.

Certain type matchups produce neutral damage, meaning attacks are neither super effective nor resisted. For instance, Poison and Electric types interact neutrally. Some type combinations result in complete immunity, such as Ghost-type moves having no effect against Normal-type Pokemon.
What Pokemon Has the Most Weaknesses?
Every Pokemon type possesses vulnerabilities to at least three other types. Dual-type Pokemon combine weaknesses from both types, potentially creating significant defensive liabilities. A Fire/Dragon type like Charizard becomes exceptionally vulnerable to Fairy/Water combinations, which explains its difficulty against Azumarill in competitive matches.
Grass/Psychic types like Exeggutor demonstrate extreme vulnerability, facing seven different super-effective types: Ghost, Fire, Flying, Ice, Dark, Poison, and Bug. This extensive weakness list makes them easy targets for well-prepared opponents. Conversely, they maintain offensive advantages against Water, Ground, Rock, Fighting, and Poison types.
Other notably vulnerable Pokemon include Rock/Ice types like Aurorus (weak to Fighting, Ground, Rock, Steel, Water, Grass) and Bug/Grass combinations such as Parasect. The key insight: dual-typing often amplifies weaknesses more than it enhances resistances.
Advanced trainers should note that weakness count alone doesn’t determine viability. Many Pokemon with multiple weaknesses remain competitively relevant due to high stats, valuable abilities, or unique movepools that compensate for their defensive shortcomings.
Building teams around type coverage requires careful planning beyond simply minimizing weaknesses. The most successful trainers create balanced teams that can handle various threats rather than attempting to eliminate all vulnerabilities.
Common strategic mistakes include overvaluing type coverage at the expense of other factors like base stats, movepool diversity, and ability utility. Many players mistakenly avoid all Pokemon with multiple weaknesses, missing opportunities with strategically valuable creatures like Scizor or Garchomp.
Proper move selection can mitigate type disadvantages. Teaching coverage moves that target your Pokemon’s weaknesses helps create unexpected counterplay opportunities. For example, giving a Grass-type Ice Beam provides protection against Dragon and Flying types that would otherwise threaten it.
Team synergy proves more important than individual Pokemon weaknesses. A well-constructed team provides mutual protection through type resistances and strategic switching.
Experienced players leverage abilities and held items to transform apparent weaknesses into strengths. Abilities like Levitate negate Ground weaknesses, while items like Assault Vest provide special defense boosts that help survive super-effective hits.
Meta game awareness helps anticipate common threats. If Fire types dominate your local meta, bringing Water or Rock types becomes strategically advantageous regardless of their other weaknesses.
Type immunities can strategically offset multiple weaknesses. Ghost types immune to Fighting and Normal attacks, for instance, can justify carrying other defensive vulnerabilities.
For comprehensive team building guidance, check out our Complete Guide to understanding core gameplay mechanics.
Action Checklist
- Memorize the core type chart relationships, focusing on your team’s specific weaknesses
- Analyze your main Pokemon’s dual-type weaknesses using online calculators
- Identify and practice counter-switching patterns for your team’s vulnerabilities
- Research optimal Weapons Unlock strategies for coverage moves that protect against weaknesses
- Experiment with ability and item combinations that mitigate type disadvantages
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