Embershield is a heavy armor set. When you deal damage with a fully-charged Heavy Attack, you have a 50% chance to increase your Spell Resistance by 3440 and deal 1032 Flame Damage to all enemies within 5 meters of you every 1 second for 6 seconds.
The Embershield set is part of the base game. It drops in City of Ash I and City of Ash II in Greenshade. Each set item is bound on pickup. You can acquire heavy armor, weapons and jewelry of this set in the Daedric motif style.