Ladies, Gentlemen and unidentifiable monsters, let me present you to a living, breathing Deep One! From the deepest gorges, from the bottom of the largest sea, from their great city of basalt, this rare visitor has arrived to, err, dine. Any volunteers?
Nerfix, it's not a goat, and it's not for me. IIRC, Illwinter accepts orders in sacrificial virgins.
EDIT: Was Goat Sun already present in Dom2, or is he new? I'm not very familiar with the infernal lords.