Sand Rush

 is a Pokémon ability introduced in the fifth generation. It increases speed in a sandstorm.

Description
Sand Rush doubles the speed of the Pokémon with this Ability during a sandstorm. If a Pokémon would take damage from sandstorm, they are now immune.

Pokémon with Ability

 * Herdier
 * Stoutland
 * Drilbur
 * Excadrill
 * Lycanroc (Midday Form)

As a Hidden Ability

 * Sandshrew
 * Sandslash

Trivia

 * This ability has similar effects to Swift Swim, Chlorophyll, Slush Rush and Surge Surfer in rain, sun, hail and Electric Terrain respectively.