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. They have 10% chance to spawn instead of a Harpy. Other factors make their spawning even less likely, or even preventable. Wyverns won't spawn if there is already a Wyvern alive. They won't spawn if the player is standing in front of a player-placed wall, or if there is a Town NPC near the player (that is, appearing on the screen for a resolution of 1920*1080), though under certain circumstances more NPCs may be necessary to completely halt their spawning. Like Harpies, spawn rates for Wyverns increase at higher altitude.

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

Tips

 * As they use the Worm AI, Wyverns move and attack similarly to Devourers and Bone Serpents, though they are not reliant on moving through blocks to angle their attacks.
 * Like with any multi-segmented enemy, piercing and explosive weapons can strike multiple segments of their bodies, dealing several times their normal damage in a single pass.
 * Wyverns fly slightly slower than the player falls. However, outrunning one on foot is only possible over Asphalt Blocks.
 * The head of a Wyvern hits for significantly more damage than the body - if you're about to be tangled up in the coils of the wyvern, it's better to be hit by the body segments than the head.

Trivia

 * Although the name "wyvern" refers to a western dragon-like creature depicted as having two wings and two hind legs, but no arms or forelegs, Terrarian Wyverns are shaped after Chinese dragons in Chinese folklore.
 * Because of their color, body shape and general style, Wyverns bear a close resemblance to several dragons from popular culture, such as Haku's true form from Studio Ghibli's animated film Spirited Away and Falkor the Luckdragon from the film The Never Ending Story.
 * The Angler mentions in a quest that Wyverns are born and raised as tadpoles- namely the.
 * Before Arch Wyverns were resprited in the 1.2 update, they looked like this: Arch Wyvern (old).png