The Lingering Mundane Potion is a throwable potion that creates a lingering cloud upon impact, but it has no effects. It is brewed by combining a Splash Mundane Potion with Dragon’s Breath in a Brewing Stand. While the Lingering Mundane Potion does not serve a functional purpose in standard gameplay, it is often considered a brewing byproduct. It could potentially be used in custom scenarios or modded content where mundane potions are given additional utility.