Malformed bow in the shape of a pair of poisonous snakes. Imbues arrows with poison through pagan magic, revealing its true worth when used with poison-infused arrows. Used by assassins known as the Formless Serpents.

A pool of rot in Abandoned CaveGrace. Mighty Shot. This weapon cannot be infused with Ashes of War. Can't be buffed by Magic or Consumables Serpent Bow can be upgraded by using Somber Smithing Stones. Adds a base of 15 Poison build-up to all arrows. This leaves a visible effect on the arrows. Best paired with Serpent Arrows or Poisonbone Arrows for faster poisoning. The poison inflicted is not deadly poison, despite bearing similar design elements to the Serpentbone Blade and the Venomous Fang. See (Poison) for more information. The buildup of Scarlet Rot from Rotbone Arrows is not affected by this bow, since Scarlet Rot doesn't scale with Arcane. The Arcane scaling on this weapon does not affect damage. The arcane scaling only affects the build-up of poison, bleed, and sleep passive effects of arrows. This bow is mostly advantageous with builds that integrate medium to high arcane. The other Arcane-influencing Status arrows include Bloodbone Arrows, Sleepbone Arrows, and St. Trina's Arrows. The Black Bow or any Light Bow with Barrage may be more effective for applying status buildup quicker (with shorter range). Sell Value: 100.