Wyvern

Wyverns are large Hardmode enemies that spawn at high altitudes. They resemble oriental dragons, are long and white, and follow the Worm AI. They are immune to the Poisoned, On Fire!, and Cursed Inferno debuffs.

Wyverns spawn at any lateral map location, day or night, but generally at Floating Island altitudes. You will know if the conditions are right for Wyvern spawning if you see Harpies, as both spawn under the same conditions, though Wyverns spawn much less often. Like Harpies, spawn rates for Wyverns increase the higher the altitude.

Wyverns will follow descending players down to ground level, and can fly through blocks, but tend not to fly below ground.