Zane's Scepter

The Staff of Ice is a weapon the Ice Emperor uses.

Wasted True Potential
Zane saw it in his dream.

The Never-Realm
The Ice Emperor held it on his throne.

Secret of The Wolf
The Ice Emperor attacked Grimfax with it by creating icicles that came up from the floor to freeze him. When Vex talks to him about Lloyd he says that is fate will be to be frozen by the ice.

Trivia

 * It probably has the Scroll of Forbidden Spinjitzu encased in it.
 * According to Vex It can banish people to other realms.