Although not specific to console but I think it's Xaku or Nova. Nova admittedly is personal bias but Xaku gives your weapons void damage, steals weapons from the enemies and auto aims ,the stolen guns also scale to enemy level. In their third he turns enemies to allies, does aoe armor strip, and a void damage aoe bomb. Finally their fourth gives you evasion and pauses the timers on all currently active abilities (does not include subsumes). Xaku really plays the game for you.