Noun
The conductor, chief, or leader of the dramatic chorus; hence, the chief or leader of a party or interest.
Source: Webster's dictionaryDragon Age: Who is Corypheus, the Darkspawn Magister? Source: Internet
In the end, the Inquisitor used the mark from Fen'harel's orb to throw Corypheus into the Fade and seal it behind him, trapping him within for all eternity. Source: Internet