DRAGON SCALE ARMOR
Dragon Scale Armor is a quest that enables the Warden to turn a dragon scale into something special.
Walkthrough
A dragon scale can be found on a High dragon found at the Mountain Top (the Mountain Top is first accessible during the quest for the Urn of Sacred Ashes). Slay the High dragon and you will find a dragon scale on its corpse. Bring the Scale to Wade at the forge in his shop: Wade's Emporium in Denerim Market District.
You must have had Wade make at least one Drakeskin armor (during the Drake Scale Armor quest), otherwise he will refuse to make any armor from the Dragon Scales (he asks you to bring him some Drake Scales first to practice with).
Rewards
Wade's Dragonskin armor set
Wade's Heavy Dragonscale armor set
Wade's Dragonbone Plate armor set
or
Wade's Superior Dragonskin armor set
Wade's Superior Heavy Dragonscale armor set
Wade's Superior Dragonbone Plate armor set
Notes
You will have to choose one of the three types of armor for Wade to make (Dragonskin, Dragonscale or Dragonbone Plate).
If you gave some gold to Wade during the quest Drake Scale Armor (either 10 Gold when he made the first set of armor, or 20 Gold when he made the second set), you will receive a superior version of this armor.
Herren only closes his shop after Wade is commissioned for a second Drake Scale Armor. If you don't commission the second drake armor, his shop will remain open even after the dragon scale commission.