Terra Wyverns are creatures located in the Unlit Cavern on the island of Avalancia. They are a more dangerous version of skeletal wyverns, meaning they require a higher slayer level to kill. They are assigned as a slayer assignment by Kuradal, but may also be fought for their unique drops. Unlike skeletal wyverns, terra wyverns use fire breath, like normal dragons, and therefore an anti-dragon shield or dragonfire shield is needed to fight them unless the player is willing to take a lot of damage.