Every effect fixed to a special Fields of Mistria item, with the exact weapons, oils and other gear that carry it and how it differs from crafting infusions.
A Dragon-Forged sword, imbued with darkness. Has a low insta-kill chance.
Every attack, while snake oil is active, adds 5 seconds of poison damage to enemies.
An eligible item can receive an infusion when it is crafted, but only after you buy the matching skill perk. The discipline heading tells you where to craft it, Applies to lists the valid item types, and four-star-only notes are hard requirements rather than a better chance.
A fixed effect belongs to the named special item. It is not added by crafting and never joins the random infusion pool. Use the item links to check where that exact weapon, oil or piece of gear comes from.
Fire Snake Oil
Ice Snake Oil
Dragon-Forged Sword
Poison Snake Oil