They do. (Destiny)

by Xenos , Shores of Time, Thursday, September 24, 2015, 13:04 (3444 days ago) @ Funkmon

But if you let the blights and adds sit they build up to the point that you can't even poke your head out to take shots at him. We managed it by killing all (or at least the vast majority of) the adds and all of the blights, then focusing on him, rinsing, and repeating. Makes it MUCH more manageable. At that point the only real struggle is the clock.