From my experiences, Rock, Ice, and Dragon. I'm not sure about electricity because altaria is also the dragon type.
Grass, Flying and Rock types.
fire type
Fire beats grass bug steel and ice Grass beats water rock and ground Ground beats electric fire and rock Rock beats flying dragon and steel Water beats rock fire and ground Flying beats grass bug and fighting Bug beats psychic and grass Electric beats flying and water Dark beats dark psychic and ghost Psychic beats fighting Ghost beats psychic Dragon beats dragon Ice beats dragon flying and grass
no Actually yes. There are some Pokemon (dewgong for example) that are water and ice and ice beats water.
From my experiences, Rock, Ice, and Dragon. I'm not sure about electricity because altaria is also the dragon type.
The only type that is Super Effective against pure Electric-types are Ground-types, like Marowak.
Ice beats Flying and Grass.
Grass, Flying and Rock types.
fire type
Fighting and Fairy
flying
Fire beats grass bug steel and ice Grass beats water rock and ground Ground beats electric fire and rock Rock beats flying dragon and steel Water beats rock fire and ground Flying beats grass bug and fighting Bug beats psychic and grass Electric beats flying and water Dark beats dark psychic and ghost Psychic beats fighting Ghost beats psychic Dragon beats dragon Ice beats dragon flying and grass
no Actually yes. There are some Pokemon (dewgong for example) that are water and ice and ice beats water.
Grass
You just need to get a good ring on all of them, which will require a good amount of Pokemon purified. For example, Water Type -> Fire Type -> Ice Type -> Grass Type would work since: Water beats Fire, which beats Ice, which beats Grass, which beats Water, and keep going in the cycle. Also, for some reason, you can use Normal Type -> Normal Type -> Normal Type -> Normal Type.
Electric