Drogoth

Drogoth the Dragon Lord was one of the last "great" dragons to live on Middle-earth. During the War of the Ring, he received a Ring of Power from the Mouth of Sauron as a reward for joining his master.

History
Drogoth was one of the last "great" dragons to live in the Third Age. He resided in the Withered Heath and took control over the lesser Drakes and called himself "Drogoth the Dragon Lord", ruling over his brethren.

He sought to take a city in the Blue Mountains as his new lair and to this end he agreed to meet with the Mouth of Sauron after the latter's legions had freed the Dragon Lord's followers. Seeing an opportunity to achieve his goals by siding with the Lord of the Dark, he joined with the Enemy.

Good Campaign
Drogoth the Dragon Lord led an army of Goblins, Spiders and Drakes in an assault against the Dwarves of the Blue Mountains and claimed their city and the treasure within for himself. With the aid of the Elven forces led by Glorfindel and Gloin, the Dwarves were able to fight back the servants of Sauron and slay the dragon.

Evil Campaign
Drogoth the Dragon Lord joins Gorkil the Goblin King and the Nine Ringwraiths in the conquest of Rivendell, bringing his Drakes with him. Sauron himself appears and fights alongside his lieutenants until the Elven city is taken and thus Middle-earth as well.

Appearances

 * The Lord of the Rings: Battle for Middle-earth II
 * The Lord of the Rings: Battle for Middle-earth II: Rise of the Witch-king