Weezing

Levitate : This Pokémon is immune to Ground-type moves, Spikes, Toxic Spikes, and Arena Trap. This ability is disabled during Gravity or Ingrain, or while holding an Iron Ball. This ability is not disabled during Roost.

Neutralizing Gas : While the Pokémon is in the battle, the effects of all other Pokémon’s Abilities will be nullified or will not be triggered.

Stench : This Pokémon's damaging moves have a 10% chance to make the target flinch with each hit if they do not already cause flinching as a secondary effect. This ability does not stack with a held item. Overworld: The wild encounter rate is halved while this Pokémon is first in the party.