Sandstorm

Changes the weather to a sandstorm for five turns. Pokémon that are not ground, rock, or steel take 1/16 their max HP at the end of every turn. Every rock Pokémon’s original Special Defense is raised by 50% for the duration of this effect.

solar beam’s power is halved.

moonlight, morning sun, and synthesis only heal 1/4 the user’s max HP.