Yellow Scarf is an item in the “Scarves” category (Items). It costs ₽100.
In-game descriptions
| Ruby / Sapphire · Emerald | A hold item that raises TOUGH in CONTESTS. |
|---|---|
| FireRed / LeafGreen | An item to be held by a POKéMON. It boosts the holding POKéMON’s TOUGH condition in CONTESTS. |
| Diamond / Pearl · Platinum | An item to be held by a Pokémon. It boosts the “Tough” aspect of the holder in a Contest. |
| HeartGold / SoulSilver | An item to be held by a Pokémon. It boosts the “Tough” aspect of the holder in a Contest in Sinnoh. |
| Black / White · Black 2 / White 2 | An item to be held by a Pokémon. It boosts the Tough aspect of the holder in a Contest. |
| X / Y | An item to be held by a Pokémon. During a Contest, it raises the Tough aspect of the Pokémon holding it. |
| Sun / Moon · Ultra Sun / Ultra Moon · Let’s Go, Pikachu! / Let’s Go, Eevee! · Sword / Shield | An item to be held by a Pokémon. During a contest, it raises the Tough aspect of the Pokémon holding it. |
Where to find it
Not placed on the atlas maps (so far: Red/Blue and Generation 3).
Sources : PokeAPI (items, item_flavor_text, machines) · atlas · pokeemerald species_info.h