Item level 39 · Stacks to 20 · Prices on every WoW Forever auction house
Draught of Detect Lesser Invisibility on every WoW Forever auction house, updated hourly. Cheapest right now: 1s 50c on EU · Normal · Alliance. About 460 sell per day across all markets.
Busiest market
US · PvP · Horde
Lowest2silver22copperUsually 2silver60copper≈ 70 sold per day