ITEM DEX

King’s Rock

King’s Rock

DE: King-Stein · Cost: 5000 ₽

Damaging moves gain a 10% chance to make the target flinch. Traded on a Poliwhirl or Slowpoke, it evolves them. – everything about its effect, locations in FireRed/LeafGreen and whether King’s Rock is worth a slot on your team, right here.

EFFECT

What does the item do?

Damaging moves gain a 10% chance to make the target flinch. Traded on a Poliwhirl or Slowpoke, it evolves them. An item to be held by a Pokémon. When the holder successfully inflicts damage, the target may also flinch.

EVOLUTION

Which Pokémon does King’s Rock evolve?

Poliwhirl — Gen V (2010) spritePoliwhirlSlowpoke — Gen V (2010) spriteSlowpoke

The item must be held during a trade — the evolution triggers on the trade itself.

CONTINUE WITHTest matchups in the Versus calcFind holder candidates in the Pokédex
Q&A

Damaging moves gain a 10% chance to make the target flinch. Traded on a Poliwhirl or Slowpoke, it evolves them. An item to be held by a Pokémon. When the holder successfully inflicts damage, the target may also flinch.

Our Kanto dataset (FireRed/LeafGreen) has no recorded location for King’s Rock. That doesn't mean the item doesn't exist — it comes from later games or other regions. As soon as we ship more map data, its locations will show up here automatically.

Flinch chance plus two trade evolutions. Held, King's Rock gives your moves a 10% flinch chance — nice on fast attackers, but no game changer. More important: Poliwhirl evolves into Politoed and Slowpoke into Slowking when traded holding it. Both are strong, underrated final forms — the rock is worth far more than it looks.

These Pokémon evolve when traded while holding King’s Rock: Poliwhirl, Slowpoke