Caustic Venomfang
This venomfang's toxins are potent enough to liquidate its prey in seconds.
How to get the Caustic Venomfang Mount
The Caustic Venomfang is a WoW flying mount added during WoW Midnight Patch 12.1, Curse of Ula’tek. This mount is purchasable for 10,000 Corrosive Coins from the Skull of Er’inye in the Vaults of Atal’Utek.
This guide covers how to farm Corrosive Coins and where to find Skull of Er’inye so you can obtain the Caustic Venomfang WoW mount.
Obtaining Corrosive Coins
Corrosive Coins are one of the primary currencies of Midnight Patch 12.1. They are earned by completing various activities throughout the Vaults of Atal’Utek, such as:
- World Events
- Daily & Weekly Objectives
- Rare Encounters
- Zone Enemies
- Treasures
- And other activities within the Vaults of Atal’Utek
You’ll earn Corrosive Coins simply by engaging with content inside the Vaults. Regular participation is the most reliable way to reach 10,000 Corrosive Coins required for Caustic Venomfang.
Caustic Venomfang Vendor Location
Skull of Er’inye, the Caustic Venomfang vendor, is located at the Amani Foothold within the Vaults of Atal’Utek, beside the Altar of Corrosion.


/way #2509 51.3 62.4 Skull of Er’inye