electric and grass are all I can think of
Grass and Electric types
Water types are good against Fire types or Rock types. Keep involving your Water type in any battles and it will gain experience.
Cyndaquil is good against bug, grass, ice and steel type. Just watch out for ground, rock and water types.
Electric and Grass type attacks are effective against Water types. Water type attacks are bad against Grass, Dragon and other Water types. Note that almost all Water Types can learn an Ice type move, so be careful when sending in Grass types to counter them.
Water and ground for rock and ground an flying for bug.
Water-Type moves are weak against Grass-Types, Dragon-Types, and other Water-Types. Water-Type Pokémon are weak against Electric-Types and Grass-Types.
Water-Type moves are strong against Fire-Types, Rock-Types, and Ground-Types. Water-Type Pokémon are strong against Fire-Types, Ice-Types, Steel-Types, and other Water-Types.
The types that are good against the ground type are water, grass, and ice types. Water and Ice types are usually profoundly effective, as the ground type is often paired with the rock type.
Gengar is a ghost/poison type so... ghost and dark types are super effective against ghost types. ground and psychic types are super effective against poison types
Depends. Water is not very effective against Dragon types. However it is possible for most water Pokemon to learn ice type moves and these will be super effective. Good luck!
grass= good against water, rock water=good against fire,rock steel fire= good against steel, grass, bug ice=good against grass, electric dark=good against anything ghost=good against normal, fighting fighting=good against normal flying good against fighting rock good against flying steel good against electric, flying poison=good against bug, flying, normal psychic=good against fighting, poison dragon good against dragon,
Electric-Type moves are strong against Water-Types and Flying-Types. Electric-Type Pokémon are strong against Flying-Types, Steel-Types, and other Electric-Types.