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Koilos
Koilos
Information
Plane Dominaria
Formerly part of Halcyon
Terisiare Detail 2

Koilos was a mountainous location deep in the Western Desert on Terisiare (Dominaria). It lay at the connection point of the Sardian Mountains and the Kher Ridges.

History[ | ]

At the time of the Brothers' War, a few crumbling buildings and a network of caves containing the last technological remnants of the Thran were all that remained of Halcyon, the beautiful capital of the Thran Empire.[1]

The most important thing here was a portal in the Caves of Koilos that would lead to Phyrexia. During the War, it was the headquarters of Gix, a powerful Phyrexian demon, who manipulated both sides in the war for Phyrexia's best interests.

After the Ice Age the site became accessible again. Once more the portal opened and Yawgmoth came through to invade Dominaria, but the Weatherlight sealed it again. Currently, Koilos is located in New Argive.[2]

Name[ | ]

In the prerevisionist source, it was Urza who named the place "Koilos", the High Argivian word for "secret".[3] The flavor text of Vault of Whispers implies that the place was named Koilos in the time of the Thran.

The name itself is likely borrowed from or inspired by Ancient Greek κοῖλος (koilos), meaning 'hollow' or 'concave'[4].

In-game references[ | ]

Represented in:
Associated cards:
Referred to:

Notes and references[ | ]

  1. Jeff Grubb (1998). The Brothers' War. Wizards of the Coast
  2. Ethan Fleischer (April 20, 2018). "Dominarian Cartography". magicthegathering.com. Wizards of the Coast.
  3. Antiquities War, Volume 1. It also means "hollow" in Greek.
  4. Wiktionary
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