Demon Powder is a consumable Item in Monster Hunter World (MHW). These useful Items can be crafted from materials gathered in the field and brought along on hunts.
A mysterious powder that produces a cloud around the area that temporarily strengthens attacks
When used from the Item Bar, Demon Powder boosts the Raw (physical) Attack Power of all Hunters and Allies in a moderate radius by 10. This boost lasts for 180 seconds or until carting or Quest completion, and stacks with boosts to Attack Power from Hunting Horn melodies, Canteen meals, and other consumables. The radius of effect is enough to cover the extent of most fights.
How to Acquire Demon Powder