Psychic

Psychic Terrain boosts its attacks by 30% when the attacker is grounded, and shields grounded Pokémon from priority moves. Trick Room, which reverses the turn order by Speed, is a Psychic move.

Its attacks are super effective against Fighting and Poison, and not very effective against Psychic and Steel; they have no effect on Dark. On defence it takes double damage from Bug, Ghost and Dark, and resists two types: Fighting and Psychic. There are 102 Psychic-type species, 39 of them pure Psychic; the most common pairings are Psychic/Fairy and Psychic/Steel, with eight each. It has 79 moves: 8 physical, 30 special and 41 status.