History of Egregore Resonator

An Egregore Resonator is an objective item that a fireteam plants during a Deep Dive, where it appears as the objective Plant Egregore Resonator. Deep Dives are Season of the Deep activities that send the fireteam through the depths of Titan's methane sea, in the New Pacific Arcology area: the Mesopelagic Twilight, Bathypelagic Midnight and Abyssopelagic Abyss, ending in a boss fight.

Planting the resonator starts the encounter and its timer, which is shown on the left of the screen. Defeating Wrathful Predators adds 15 seconds to that timer. Deep Dives are matchmade for three players, and join-in-progress is disabled.