5 Lessons For PR From Cannes 2015 A question of definitions, a time to stop sounding so defensive, and reasons to really celebrate creativity. http://www.holmesreport.com/long-reads/article/five-lessons-for-pr-from-cannes-2015 Paul Holmes 28 Jun 2015.
Poison-type Pokemon are one of the coolest looking but weakest types in the game. They're weak to psychic and ground types. Their attacks are weak against other poison types as well as ground, rock, and ghost types. They have no effect on steel types.
Hope this helped. Grass type pokemon aren't known for their strength. They have low defenses (def and sp.def in general) but they did have an excellent atk and sp.atk. Grass pokemons are strong vs Water (the most common type), Ground, and Rock (both quite common types. If you use Grass type properly, they surely be a nice addition.