Definition

The Omnigem is a very powerful gem, with full power of all the elements.

Obtaining

To get this gem you have to do a very expansive crafting: you have to put all the 8 Elemental special gems In a Random order and a Nether star at the center. 

Usage

This powerful gem can be used to craft the Omnisword and the Omnistaff. it's used to craft the Galaxy sword too.