Primordus

Primordus was the first of the Ancient Dragons to awaken in Tyria. Primordus begins to summon an army deep below Tyria after the destruction of The Great Destroyer. After Primordus's awakening, the other ancient dragons began to awaken one by one. He is highly suspected to be one of the main antagonists in Guild Wars 2.

Primordus in Guild Wars
Primordus can be seen in the final mission in Guild Wars: Eye of the North. He is the giant "statue" that looms over the Great Destroyer boss.

Primordus can be seen in Ogden's Benediction cutscene awakening.

The head of the statue of Primordus greatly resembles that of Glint herself because of the spiked head. Perhaps this is a hint that there might be some connection.

Trivia

 * Primordus could refer to the word Primordial meaning being or happening first in sequence of time, or biology belonging to or characteristic of the earliest stage of development of an organism or a part.
 * Primordus could also stem from the combined Latin words "Primus," meaning first, and "ordo," meaning series.
 * Primordus can be seen in the second vision whilst looking in the scrying pool.