Unusual Essence

This essence first apparition was made on Diretide 2012. It is use on Greevil eggs and produce various unusual effects depending on the numbers of unusual essence you used on your eggs.(Max 3 instances per egg.)

And now! Unusual essence made his apparence on the winter event : Frostivus.(Greeveling) This essence was optainable via the Frostivus nice gift and Frostivus naughty gift along with the Drow Ranger crate, Dragon Knight crate and Bloodseeker crate.