Enchanted Nightborne Coin

Enchanted Nightborne Coin is a quest reward from:

• A Big Score
• And They Will Tremble
• Another Arcan'dor Closes...
• Arcane Communion
• Arluin's Request
• Bring Home the Beacon
• Crackdown
• Dispensing Compassion
• Flow Control
• Friends With Benefits
• In the Bag
• Make an Entrance
• More Like Me
• Moths to a Flame
• Network Security
• Or Against Us
• Regroup
• Shal'Aran (quest)
• Silkwing Sabotage
• The Delicate Art of Telemancy
• The Old Fashioned Way
• The Only Way Out is Through
• The Shardmaidens
• Vote of Confidence
• Waning Refuge

There are actually two types, in copper and gold, but they are interchangeable and give the same amount of Artifact Power.