The Eroder

The Eroder is the boss of the Close Encounter of the Terra Kind collaboration quest in Final Fantasy XV. Noctis and Sarah face it at the end of their quest. The Eroder is a mystical being that absorbs data from the environment, copying it and growing stronger. It wants to remake the world, and thus the Great Tree summoned Noctis and Sarah to slay it.

The Eroder initially poses as a Hiso Alien, but Sarah senses something amiss and shoves Noctis aside, being knocked down by it in the process. The Eroder copies Sarah's appearance and powers and now appears similar to her with an inverted color scheme. The "whites" of its eyes are black and it has red scarring around its right eye. Occasional red data flickers across her body. The Eroder considers itself to be a god destined to rule over the Great Tree's realm. It is power-hungry, reveling in the power it copied from Sarah.

The player can view the boss's stats by scanning it in Wait Mode. Magic, elemental damage, status effect moves, point-warping, Armiger and summons are not available.