While abilities like Sand Rush provide a massive speed boost, allowing Pokémon such as Excadrill to outspeed most threats, priority moves function independently of raw Speed stats. This means an opponent can bypass your Sand Rush speed with a well-timed priority attack, potentially landing a super-effective hit before your Pokémon can act. Excadrill, having only moderate base speed without Sand Rush, becomes particularly susceptible to these attacks, turning what seems like an unassailable speed advantage into a tactical weakness if not played carefully.