Q&A for How to Learn Type Weaknesses in Pokémon

First, assess if the type matchup feels intuitive. If you struggle to explain why one type would be super effective against another, you might be misremembering, so consult a reliable Pokémon type chart.

Kahuna Olivia primarily uses Rock-type Pokémon, so you should use Fighting-type Pokémon like Hariyama or Bewear.

No, the Normal type is not weak to the Fairy type. However, a Sylveon could still deal super effective damage to an Eevee if it knows a Fighting-type move, such as Double Kick, which is super effective against Normal-type Pokémon.

You may find that these matchups make more sense if you consider the original Japanese names for the types.

The Steel type is not weak to Water because, generally, water would not significantly affect a steel structure without a prolonged period. This decision also serves as a balancing mechanism within the game, as Water is already a strong type.