Heavy Rain weather condition was introduced in Generation II. It can be brought about by use of the move Rain Dance ( TM18) or by the Drizzle ability.
Heavy Rain will not damage any type of
Pokémon in between turns in battle (unless an ability would cause HP loss).
A Pokémon holding the item
Damp Rock will prolong the duration of Heavy Rain for three more turns than normal, the average being three to five turns.
Effects in Battle Edit
Associated Abilities Edit
This ability will summon Heavy Rain which will last the entirety of the battle, unless another weather condition is introduced to the battlefield or its effect is nullified by Cloud Nine or the Air Lock abilities.
A Pokémon with this ability will recover 12.5% of it's maximum HP at the end of every turn. It will also restore 25% of its maximum HP if attacked with -type moves.
This ability will remove any status condition when in battle as long as it is raining. This includes removal of Sleep after use of Rest.
6.25% (1/16) of this Pokémon's maximum HP is restored at the end of every turn when it is raining.
The Speed stat of Pokémon with this ability is doubled.
Associated Moves Edit
This move will summon (or prolong) Heavy Rain for 5 turns.
25% (1/4) of the user's HP is restored, when Morning Sun used.
25% (1/4) of the user's HP is restored, when Moonlight used.
25% (1/4) of the user's HP is restored, when Synthesis used.
Solarbeam's base power drops 50% (from 120 to 60).
Thunder's accuracy is boosted to 100% (for a gain of 30% it's initial accuracy of 70%) . It has the potential to break through Detect and Protect at a rate of about 1 in 3 (30% of the time). This is the same for the move Hurricane.
Weather Ball becomes -type. Its base power doubles from 50 to 100. Water Castform will receive STAB from Weather Ball in Heavy Rain.
Heavy Rains in Route 101.
Heavy Rain in battle.