Heat-Rock 
Heat Rock is a held item in the Pokémon series that extends the duration of the move Sunny Day from five turns to eight turns. Sunny Day is a weather-altering move that changes the battlefield's weather to sunny, boosting the power of Fire-type moves by 50%, reducing the power of Water-type moves by 50%, and activating a variety of Pokémon abilities and moves that are dependent on sunny weather.
Key effects of Sunny Day extended by Heat Rock include: 1. Chlorophyll: Doubles the Speed stat of Pokémon with this ability. 2. Solar Power: Increases Special Attack by 50%, but the Pokémon loses some HP each turn. 3. Harvester: Allows a Pokémon to potentially reuse a consumed Berry. 4. Leaf Guard: Prevents status conditions while the weather is sunny. 5. Solar Beam: Reduces the charge time from two turns to one turn.
In competitive play, Heat Rock is commonly used on
Attribute
Category:
held-itemsCost:
4000
Effect:
- Held: The holder's Sunny Day will create sunshine lasting for eight turns rather than five. As this item affects the move rather than the weather itself, the effect is not lost if the holder leaves battle or drops this item.
Flavor Texts:
- diamond-pearl: A Pokémon hold item that extends the duration of the move Sunny Day used by the holder.
- platinum: A Pokémon hold item that extends the duration of the move Sunny Day used by the holder.
- heartgold-soulsilver: A Pokémon held item that extends the duration of the move Sunny Day used by the holder.
- black-white: A Pokémon held item that extends the duration of the move Sunny Day used by the holder.
- black-2-white-2: A Pokémon held item that extends the duration of the move Sunny Day used by the holder.
- x-y: An item to be held by a Pokémon. It extends the duration of the move Sunny Day when used by the holder.
- sun-moon: An item to be held by a Pokémon. It extends the duration of the move Sunny Day when used by the holder.
- ultra-sun-ultra-moon: An item to be held by a Pokémon. It extends the duration of the move Sunny Day when used by the holder.
- lets-go-pikachu-lets-go-eevee: An item to be held by a Pokémon. It extends the duration of the move Sunny Day when used by the holder.
- sword-shield: An item to be held by a Pokémon. It extends the duration of the move Sunny Day when used by the holder.
Fling Power
60
Game Indices
- generation-iv (Game Index: 284)
- generation-v (Game Index: 284)
- generation-vi (Game Index: 284)
- generation-vii (Game Index: 284)
- generation-viii (Game Index: 284)