Poison

Toxic never misses when a Poison type uses it, and a grounded Poison type that switches in clears Toxic Spikes from its side of the field.

Its attacks are super effective against Grass and Fairy, and not very effective against Poison, Ground, Rock and Ghost; they have no effect on Steel. On defence it takes double damage from Ground and Psychic, and resists five types: Grass, Fighting, Poison, Bug and Fairy. There are 83 Poison-type species, 16 of them pure Poison; the most common pairings are Poison/Grass (14), Poison/Bug (12) and Poison/Water (6). It has 36 moves: 12 physical, 12 special and 12 status.