Eater of Worlds

The Eater of Worlds is a Boss monster summoned by using Worm Food in The Corruption as well as being summoned each time you break 3 Shadow Orbs. Trying to summon one with Worm Food while another is still alive will result in instant death. Despite this, summoning additional ones by breaking additional orbs does work.

Segments

 * 1-3 s: 100% (1:1 chance)
 * 2-5 s: 50% (1:2 chance)
 * Around 300

Final Kill

 * 30-59 s: 100% (1:1 chance)
 * 5-15 s: 100% (1:1 chance)

Boss Description
Like all worms, the Eater of Worlds is not a single target; each body section is an individual entity. Unlike other worms, however, the Eater of Worlds will split into multiple smaller worms when a segment is destroyed. To defeat the Eater of Worlds, each and every section of the Worm must be killed. Counting the head and tail, Eater of Worlds spawns with 50 segments.

Each individual worm is composed of at least 2 entities: a Head, a Tail, or more Body sections. Splitting the Eater of Worlds into parts of less than 2 sections will instantly destroy the stray parts.

The different sections of the Eater of Worlds are not equivalent: A Head section will deal significantly more damage than the Body or Tail. Direct contact with Heads should be avoided at all costs &mdash; even if you can't fully avoid a Worm, a Body contact is better than a Head contact. The Head sections also have significantly less health than the Body; this can be exploited when trying to hunt down the last small worm. Destroying a Head section will cause the Eater of Worlds to stop his forward momentum and begin tunneling into the earth again.

If the player takes too long or dies too many times, the Eater of Worlds will disappear.

It is strongly recommended to use either a Flail-type weapon, Vilethorn, Dark Lance or Vile Powder against the Eater of Worlds, as they can hit multiple parts of the boss in just one attack. Grenades are also a formidable weapon against it, dealing high damage to multiple parts of its body. Also, the Vilethorn can be shot through solid blocks making, it a good weapon to use if you listen for the Eater of Worlds, then shoot it where the boss will come up. The Dark Lance in particular is highly effective for being able to destroy the head of the boss in one hit, allowing for multiple consecutive "kills" before Eater of Worlds begins moving again.

History

 * In update 1.0.3, a bug caused the Eater of Worlds to spawn any time you simply selected the worm food in your inventory.
 * In update 1.0.4, the Eater of Worlds was updated to have slightly more Health and Defense and deal more damage than it had previously.
 * In update 1.0.5, the buffs from 1.0.4 were partially reverted. The Head, Tail, and Body sections all lost Health and Attack Power, but not to pre-1.0.4 levels. The guaranteed Shadow Armor piece drop has been removed, as well, making his Shadow Scale and Demonite Ore drops far more valuable. The ability to fight him anywhere (e.g. leading him back to your spawn point) seems to have been removed as well. He can only be fought in the corruption now. If a magic mirror is used, he won't follow you, and if it took you too far away, you will get an instant "Eater of Worlds has been defeated!" message with no loot. It also happens if you reload your world (save&exit and come back), but no messages will appear.
 * In update 1.0.6, the Eater of Worlds is no longer "defeated" when he flees.

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