Buy OSRS Impish whistle
The Impish whistle is a fun cosmetic item in Old School RuneScape. When you blow it, it unlocks a special look for your Arceuus thralls. Instead of their normal look, your thralls will appear as imps. This is a cosmetic change only, so your thralls still work the same way in combat.
This item comes from the Leagues Reward Shop, where it costs 8,000 League Points. It is a members-only item. It is also tradeable, so you can buy or sell it on the Grand Exchange. You can store it in your bank or turn it into a note. It weighs very little at 0.1 kg. The whistle has two options, Blow and Drop. It cannot be turned into coins with alchemy spells.
Players who use the Arceuus spellbook and like to summon thralls will enjoy this item. The imp look is a rare style that helps your character stand out. It is a great pick for anyone who wants a unique touch on their magic setup or wants to collect items from the Leagues Reward Shop.