Swamp Thing

The Swamp Thing is a Hardmode enemy that spawns only during a Solar Eclipse, during which they are about as common as a Zombie.

They are immune to the Poisoned and Venom debuffs. It moves extremely fast, so it is recommended to use rapid-fire weapons or weapons with high knockback. The Swamp Thing also seems to occasionally stop in place, leaving it vulnerable to attacks.

On the s and s, they can drop the Broken Hero Sword, an item needed to craft the Terra Blade. On the, the Swamp Thing will no longer drop anything aside from its respective banner.

Trivia

 * Swamp Things are a reference to the namesake 1982 classic horror film.

History
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