Octarine Core

The Octarine Core is an item purchasable at the Main Shop, under Caster.

Trivia

 * Octarine is a fictional color in the comic fantasy book series Discworld, written by the late Terry Pratchett. The color is described as "resembling a flourescent greenish-yellow purple" and can only be seen by wizards and cats.
 * The components of Octarine Core is the old components of Aghanim's Scepter.