Forewarn: Upon entering battle, reveal the highest power move any foe knows.
Hidden
Dry Skin: In sunny weather, lose 1/8th max HP each turn. In rain, restore 1/8th max HP each turn. Takes 1.25x damage from Fire-type moves and absorbs Water-type moves to restore 1/4th max HP.
Hydration: Major status problems are healed in the rain.