Larvitar

Guts : Whenever this Pokémon is asleep, burned, paralyzed, or poisoned, it has 1.5× its Attack. This Pokémon is not affected by the usual Attack cut from a burn. This bonus does not count as a stat modifier.

Sand Veil : During a sandstorm, this Pokémon has 1.25× its evasion, and it does not take sandstorm damage regardless of type. The evasion bonus does not count as a stat modifier. Overworld: If the lead Pokémon has this ability, the wild encounter rate is halved in a sandstorm.