Team archetype
Sandstorm teams
Sand Stream brings a sandstorm for five turns on switch-in, and Sand Spit does the same when its holder is hit by a move. Sand Rush doubles Speed, and anything that is not Rock, Ground or Steel loses a sixteenth of its HP every turn, which is how sand teams win slowly.
Pokémon that are not Rock, Ground, or Steel types take damage equal to 1/16 of their max HP at the end of every turn. Boosts the Sp. Def stats of Rock-type Pokémon by 50%.
The engine
Sandstorm setters
These set sandstorm the moment they switch in, without spending a turn. A sandstorm team almost always starts here.
The payoff
Pokemon that profit from sandstorm
Each of these has an ability that does nothing until sandstorm is up, then changes the game.
Sand Veil5 Pokemon
Backup plan
Pokemon that learn Sandstorm
These can set sandstorm with a move instead of an ability. It costs a turn and runs out, so it is usually the weaker option, but it opens the archetype to Pokemon outside the 4 that set it with an ability.