Poison is very effective against grass pokemon.
Water and Grass attacks are super effective against Onix.
grass Pokemon
the best team for battle dome in Pokemon emerald is a grass type(against swampert , and a rock type(against charizard and salamance)
No, grass is neutral to psychic types. It is only super-effective to water, rock, and ground types.
By moving clumps of grass in pokemon emerald.
By training youre pokemon to lv 55 at least and have good stormy attacks that are effective against Wallace like grass electric and psychic in tentacruels case
yes ice is super-effective against grass
Ice, grass, and water.
Grass Electric
fire,flying,and dragon
The first guy has dark Pokemon. Fighting is super effective against dark. The second guy has ghost Pokemon. Psycic is super effective against, but beware: ghost is super effective against psycic. The third guy has ice Pokemon. Fire obviously is super effective against Ice. The last guy has dragon Pokemon. Dragon and ice are super effective against dragon. The champion has water Pokemon, but one of his Pokemon is water and ground. Electric is very good against water, but it doesn't effect his water and ground Pokemon. Grass is very good to use against his water and ground Pokemon.