electric types and grass types.
Ghost & Flying. I believe that's it! Not dark or bug because although they're super-effective against Psychic, they are not-effective against Fighting. And not Psychic, because though it's super-effective against Fighting, it's not-effective against Psychic.
Water and Grass attacks are super effective against Onix.
super effective is bug
psychic pokemons and attacks are super effective
Steel is super effective against rock type pokemon.
Blastoise is weak against Grass and Electric-type attacks.
Have a diverse team, make sure there isn't a type that is super effective against all your pokes. -Blastoise -Gengar --Alakazam -Pidgeot -HM Pokemon X2 -Blastoise is super effective against rock, ground and fire -Gengar is super effective against ghost,grass and bug -Alakazam is super effective against fighting and poison -Pidgeot is super effective against bug fighting grass
Flying and Psychic are super effective against fighting
Lightning is super effective against Water and Flying types in Pokémon battles.
Ghost & Flying. I believe that's it! Not dark or bug because although they're super-effective against Psychic, they are not-effective against Fighting. And not Psychic, because though it's super-effective against Fighting, it's not-effective against Psychic.
Water and Grass attacks are super effective against Onix.
super effective is bug
psychic pokemons and attacks are super effective
Bug Type and Fighting Type moves are super effective against it.
Rock, electric, ice, and psychic types are super effective against Crobat.
Steel is super effective against rock type pokemon.
Bug types are super effective against Dark, Grass and Psychic (x2) in Generation II-onward. In Generation I, they were super effective against Grass, Poison and Psychic.