I find that sand has few abusers compared to other weathers. I'll list of the effects and pokemon that benefit from it. 1. Non-Rock, Steel, and Ground Pokemon are damaged each turn.- It may damage a lot of Pokemon in the metagame, but it is not that much damage anyway and that doesn't stop people for using pokemon hurt by sandstorm on sand teams. 2.Rock types get their SpD increased by 50%.- This seems very significant, but only 2 OU pokemon are rock types. While that boost does make those two pokemon much better, those two pokemon, Tyranitar and Terrakion, are not even on every team if you look in the RMT forum. 3. Solarbeam power is reduced by 50%.- The fact that sun is gone anyway cripples Solarbeam, adding to the fact that it can be used as a more anti-weather. 4. Synthesis, Morning Sun, & Moonlight get cut to 50%.- Correct me if I am wrong, but this only affects Cresselia, which is very uncommon. 5. Sand Rush, Veil, and Force activate- Viable Sand Force Pokemon- Landorus Viable Sand Rush Pokemon- Stoutland, Sandslash Viable Sand Veil Pokemon- Gliscor(Poison Heal is MUCH more common) Stoutland and Sandslash can be deadly sweepers, but are only UU and not used often. Landorus with STAB Earthquake and Sand Force is deadly but also doesn't feature on all Pokemon. I think definition of a sand team should be that it features at least two Pokemon that benefit from one of the above effects, such as featuring Stoutland, Landorus, Sandslash or Terrakion.