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 incredibly 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, they can drop the Broken Hero Sword, an item needed to craft the Terra Blade. They can also open Doors. On the, the Swamp Thing will not drop anything besides Coins.

Trivia

 * The Swamp Thing is a reference to the namesake 1982 classic horror film.
 * When a Swamp Thing is killed on the, the remains of a Zombie appear rather than those of itself.

History
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