Eternal Chaos Arena

Introduction
Also known as "ECA". Eternal Chaos Arena is a 20 minute dungeon in which waves of monsters spawn in an enclosed arena. A boss monster spawns last which the players must defeat to complete the dungeon.

Drops
This dungeon only drops the following item:
 * Fragment of Chaos

Monsters
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Wave 1

 * Invader Mechbuffallow of Eternity

Wave 2

 * Zombie Warrior of Eternity
 * Death Prime Knight of Eternity
 * Zombie Slayer of Eternity

Wave 3

 * Ergdusu of Eternity
 * Dark Troll of Eternity

Boss 1

 * Kanaph Lycanus of Eternity

Wave 4

 * Minotaurus of Eternity
 * Spataus of Eternity

Wave 5

 * Karajoph of Eternity
 * Burphy of Eternity

Wave 6

 * Fire Servant of Eternity
 * K'evin the Deputy of Eternity

Boss 2

 * Tyrant of Eternity
 * Reth Tyrant of Eternity

Wave 7

 * Dorigo of Eternity
 * Kendril of Eternity
 * Cockatrice of Eternity

Wave 8

 * Bloody Ogre of Eternity
 * Haschnarc of Eternity
 * Grischnarc of Eternity
 * Bone Chief Kansiok of Eternity

Wave 9

 * Cornus of Eternity
 * Armun Ater of Eternity
 * Armum Rutil of Eternity

Boss 3

 * Eins Frame of Eternity
 * Zwei Frame of Eternity
 * Drei Frame of Eternity

Wave 10

 * Armun Ater of Eternity
 * Phantom Knight of Eternity
 * Black Guard of Eternity
 * Undead Warrior of Eternity

Wave 11

 * Flesh Golem of Eternity
 * Undead Golem of Eternity
 * Berserk Ghoul of Eternity

Wave 12

 * Dark Shielder of Eternity
 * Demon Jason of Eternity
 * Dark Spirit of Eternity

Boss 4

 * Etherno Calligo Tempus of Eternity

Wave 13

 * Jameu of Eternity
 * Ratzel of Eternity
 * Bone Chief of Eternity
 * Maga Eyagre of Eternity
 * G'ni of Eternity
 * K'enith of Eternity
 * Unith of Eternity

Wave 14

 * Arzip of Eternity
 * Ispita of Eternity
 * Ariadney of Eternity
 * Artoorbar of Eternity

Wave 15

 * Tenneth Wienelander of Eternity
 * Books of Eternity
 * Charayan Fenysere of Eternity
 * Eliana Estela of Eternity
 * Sage Archimedeon of Eternity

Boss 5

 * Lycanus the Phantasmal Tyrant
 * Tempus the Invisible Undead King
 * Dark Kimzark of Infinity
 * Tyrant the Returned Mutant
 * Frame the Metal Clan's Ultimate weapon
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Walkthrough
A generic guide for Chaos arena is described on the Chaos Arena main page. The strategy described there is applicable for any CA dungeon level, or in this ECA dungeon.