Uncover the ultimate powerhouses in the realm of defense! This tier list ranks the most formidable "gatekeeper" characters, those stalwart defenders who stand between victory and defeat. From the unyielding Aegis and the adaptable Hybrid to the disruptive Bastion and the elusive Echo, discover which champions excel at locking down objectives and shutting down enemy advances. Will the strategic Mediator or the overwhelming Void model reign supreme? Explore the rankings to see where these critical defensive units fall, and learn which characters are essential for building an impenetrable frontline.