Kill Taken Champions

Defeat Taken Champions at the Divide, Skywatch, and Rocketyard at the Cosmodrome.
"There's nothing about the Taken I like. Cabal, good tactics. Hive, great architecture. Fallen are fantastic joke-tellers and Vex can make decent hat racks. The Taken? All they do is spread the blight and try to kill you." —Cayde-6
Added In
The Taken King (2015.09.09)