Believe it or not, in the mainline games, it is totally possible for each Pokemon type to be the sole weakness of a certain Pokemon in a certain scenario. Yes, even Normal! There are also more ways for pokemon to have absolutely no weaknesses than you think, not just Eelektross and Pre gen 6 Spiritomb! Just for fun, let’s go over all of the crazy ways that a Pokemon could have just 1 weakness or no weaknesses, up to in-game limitations. Unused type combos will also be allowed to make things more interesting.
Solely Weak to Normal:
Rock/Grass with Volt Absorb in Inverse Battle
Solely weak to Grass:
Water/Ground
Pure Water with Volt Absorb
Water/Electric with Levitate
Pure Ground with Thick Fat Under Desolate Land
Solely weak to Fire:
Bug/Steel
Steel/Fairy with Levitate
Steel/Poison with Levitate
Steel/Flying with Volt Absorb
Steel/Psychic with Levitate pre Gen 6
Steel/Ghost with Levitate pre Gen 6
Solely weak to Water:
Fire/Ground with Levitate
Ground/Flying with Thick Fat under Delta Stream
Solely weak to Electric:
Pure Water with Sap Sipper
Steel/Flying with Flash Fire
Solely Weak to Fighting:
Pure Normal
Normal/Steel with Flash Fire and Air Balloon
Normal/Electric with Levitate
Rock/Steel with Water Absorb and Air Balloon
Pure Steel with Flash Fire and Air Balloon
Steel/Fighting with Flash Fire and Air Balloon
Steel/Fire with Water Absorb and Air Balloon
Steel/Water with Volt Absorb and Air Balloon
Steel/Grass with Flash Fire
Steel/Electric with Flash Fire and Air Balloon
Steel/Ice with Flash Fire and Air Balloon
Steel/Dragon with Levitate
Steel/Dark with Flash Fire and Air Balloon
Rock/Electric with Sap Sipper and Air Balloon Under Desolate Land
Dark/Ghost Under the effects of foresight pre gen 6
Solely Weak to Ground
Pure Electric
Poison/Dark
Steel/Poison with Flash Fire
Steel/Fairy with Flash Fire
Fire/Ground with Water Absorb
Steel/Psychic with Flash Fire pre Gen 6
Steel/Ghost with Flash Fire pre Gen 6
Solely Weak to Bug:
Ice/Flying with Sap Sipper and Air Balloon in Inverse Battle
Pure Psychic in Gen 1
Normal/Psychic in Gen 1
Dark/Psychic pre Gen 6
Solely Weak to Flying:
Fighting/Psychic in Gen 1
Bug/Ground with Thick Fat Under Desolate Land
Solely Weak to Poison:
Electric/Fairy with Levitate
Ice/Ground with Volt Absorb in Inverse Battle
Solely Weak to Rock:
Water/Flying with Volt Absorb
Bug/Electric with Flash Fire
Fire/Electric with Water Absorb and Air Balloon
Pure Fire with Levitate Under Desolate Land
Fire/Flying with Volt Absorb Under Desolate Land
Electric/Flying with Thick Fat
Solely Weak to Ice:
Pure Ground with Sap Sipper Under Desolate Land
Ground/Flying with Water Absorb
Pure Ice in Inverse Battle
Water/Ice with Water Absorb in Inverse Battle
Ice/Bug with Sap Sipper and Air Balloon in Inverse Battle
Solely Weak to Ghost
Pure Normal in Inverse Battle
Pure Ghost in Gen 1
Solely Weak to Psychic:
Pure Poison with Levitate
Normal/Poison with Levitate
Poison/Electric with Levitate
Fighting/Electric with Levitate Pre Gen 6
Poison/Flying with Delta Stream
Dark/Psychic in Inverse Battle
Ice/Psychic with Thick Fat in Inverse Battle
Solely Weak to Dragon:
Water/Dragon Pre Gen 6
Pure Dragon with Thick Fat Pre Gen 6
Dragon/Electric with Thick Fat and Air Balloon Pre Gen 6
Solely Weak to Dark:
Normal/Ghost
Pure Ghost with Purifying Salt
Solely Weak to Steel:
Fairy/Ghost with Purifying Salt
Normal/Fairy under the effects of Trick or Treat
Rock/Flying with Water Absorb under Delta Stream
Solely Weak to Fairy:
Dark/Ghost
Dark/Flying with Delta Stream
NO Weaknesses at all:
Pure Electric with Levitate
Poison/Dark with Levitate
Water/Ground with Sap Sipper
Bug/Steel with Flash Fire
Steel/Fairy with Flash Fire and Air Balloon
Steel/Poison with Flash Fire and Air Balloon
Pure Flying with Delta Stream
Normal/Flying with Delta Stream
Electric/Flying with Delta Stream
Steel/Flying with Flash Fire under Delta Stream
Water/Flying with Volt Absorb under Delta Stream
Pure Ice with Thick Fat in Inverse Battle
Dark/Ghost Pre Gen 6
Steel/Psychic with Flash Fire and Air Balloon Pre Gen 6
Steel/Ghost with Flash Fire and Air Balloon Pre Gen 6
Normal/Ghost Gen 1
Psychic/Ghost Gen 1
That’s all for now, folks. Let me know if I missed any other crazy scenario where a pokemon would have ethier 1 or zero weaknesses in the mainline games. Remember, it’s all bound to in-game limitations, so some abilities like delta stream are not available from gen 8 onwards, and purifying salt doesnt exist prior to gen 9.
Missin Out!
