Primus Ghual is the main antagonist of Destiny 2.
Summary
In response to the distress call issued by the Skyburners, Primus Ghaul raised the Red Legion, an armed forced beholden to the Cabal, and laid siege to the Last City on Earth. After launching the surprise invasion and destroying the Tower, managing even to wound the Traveller, the Guardians were dispersed and left wondering what to do next.