>>12248743>whats so special about Stealth Rocks?Rocks is good for sweeping because it chips away at health making it easier to get that 1HKO
Rocks punishes switching, one of the most common thing competitive players do
Rocks demolishes certain pokemon weak to rock type by knocking them to 3/4 or 1/2 health before they even make a move.
Rocks stays forever unless a single specific move is used (a move that is rare, easy to predict, and easy to block with ghost types).
Rocks can be used with a common tactic called "phasing" to great effect, taking down walls and previously set up pokemon.
All this off a single attack you only have to use once.