Sip of Ravage Stamina is the inverse of the restore-stamina potions — a debuff drink that drives up the cost of stamina abilities for its duration. Natural Water solvent paired with any two reagents that share the Ravage Stamina trait yields the Sip; five reagents carry that trait. The potion is almost never consumed in combat. Its place in the game is structural — the daily alchemy writ rotation cycles through it, and writs are the demand floor.
Where the value is
This is one of the rare price hubs where the honest answer is: there isn't much. Trader stocks for the finished potion are thin to nonexistent, and weekly NA-megaserver sales register at zero. The 880 monthly search volume that lands here is overwhelmingly alchemy writ grinders looking up which two reagents to combine for tomorrow's writ. All five Ravage Stamina reagents sit under 150g each — Fleshfly Larva is typically the cheapest at around 40g, Emetic Russula and Stinkhorn close behind — so crafting takes a few minutes and well under 200g per dose. The math never favors buying the finished potion over making it.
How to get them
Craft via Alchemy. The cheapest reliable recipe is Natural Water + Fleshfly Larva + Emetic Russula — both reagents share only Ravage Stamina, with no off-trait collisions that would change the potion's identity. Stinkhorn, Imp Stool, and Luminous Russula round out the reagent pool, but watch the secondary traits when pairing them: Stinkhorn and Emetic Russula together produce Sip of Ravage Health, not Stamina, because both also share Ravage Health. The two-cheap-reagent pattern is the standard writ-grinder's recipe — and the reason this potion doesn't have a real secondary market.