Sandstorm (move)

Effects

Sandstorm creates a sandstorm on the battlefield that lasts for 5 turns and induces these additional effects:

• All Pokemon except Rock, Ground and Steel types and those with the Sand Veil, Sand Rush or Sand Force abilities, lose ¹⁄₁₆ of their max HP at the end of each turn.
• Pokemon with the Sand Veil ability increase their evasion by 20%.
• Pokemon with the Sand Rush ability double their speed.
• Pokemon with the Sand Force ability increase the power of Rock, Ground and Steel type moves by 30%.
• From Generation 4 onward, the Special Defense of Rock-type Pokemon is increased by 50%.
• The move Weather Ball changes to Rock type and doubles in power.
• The power of SolarBeam decreases by 50%.
• The moves Synthesis, Morning Sun and Moonlight recover ¹⁄₄ of the user's max HP (instead of the usual ¹⁄₂ HP).

Machine

TM37 in Generation 2, 3, 4, 5