Mithril Coldain Insignia Ring

Steps

 * 1) Take the chipper you made to the Ring War Battlefield.
 * 2) There are six ice egg-like objects you can interact with. Click one and you'll have to kill a level 90^^^ giant. "At 10% or so he starts aoe'ing and power draining so plan group accordingly." Do this 6 times to the same egg.
 * 3) Return to Malidain, who completes the quest and moves to Thurgadin, in Icewell Keep