Aghanim's Scepter

Aghanim's Scepter is an Item purchasable at the Main Shop, under Caster. However, it can only be completed with items from the Secret Shop.

Trivia

 * Aghanim's Scepter is a reference to Agahnim, one of the main villains in "A Link to the Past", a game in "The Legend of Zelda" series.
 * In both Dota 1 and Dota 2, Rubick is the son of Aghanim.