The Eye of Ugin is a secret underground cavern in Zendikar named after the planeswalker Ugin. Here the spell that kept the Eldrazi imprisoned was focused.

At some point Nicol Bolas became aware of the Eye and later send Sarkhan Vol to guard it. Chandra Nalaar found this place following the map she first found on Kephalai, with Jace Beleren chasing after her.

When Chandra and Jace confronted Sarkhan at the Eye, they found out that colored magic was absorbed immediately, taking no effect. Moreover the place was keyed to a specific event, the presence of three planeswalkers and the breath of Ugin. During their fight, Chandra used an invisible flame spell against Sarkhan, thus triggering the release of the Eldrazi.