Element-Tamer Dagoda at Zim'Torga wants you to collect 7 Essence of the Frozen Earth.
We captured these elementals from nearby, and I have plenty of defenders now. But, it takes a great deal of power to make them strong enough to stand up to our enemies.
The frozen earth at Drak'Mabwa to the northwest have what I need to maintain our defenses. I'll need more of their essence if I'm to keep this up.