The Vessel Drainer is a craftable Pre-Hardmode magic weapon. When used, it summons a blood tentacle from the player, which splits into blood clots that steal life from enemies and in which it regenerates the players health.
Its best modifier is Mythical.
- If you have the Blood and Gore setting turned off, the projectiles will look like clouds instead of blood.
- Aesthetically, Vessel Drainer is very similar in color and style to the Harvester.
- It is also similar to these weapons as it is crafted at an Altar using the four staves found or crafted with materials from the four main biomes of the world: Crimson, Jungle, Dungeon, and Underworld.
- Vessel Drainer has a Corruption counterpart, Horizon's Edge, which uses the Vile Wand instead of Bloodletter as a component.