The Altar of Flesh

It appears in the alternative timeline Fall of the Outcasts.

History
After brutally beating back the Outcast rebellion, the undead use their harvested souls to assemble the Abomination, an unholy amalgamation of skeleton and flesh. This goliath emerges from the lifeforce of the former living, and is faced by the Traveler.

During the fight, the Traveler ensures that the Abomination is dealt with for good. They destroy the unholy creation, as well as the four Soul Repositories that granted it unlimited supply of life.

After the encounter, the joint manifestation of the Outcast souls appears. It expresses its gratitude in the name of the fallen and ask the Traveler to choose whether they should commemorate the glorious past, or look forward into the future with hope.