Subterranean Nautilus

Subterranean Nautilus arrived on the same day in February 2012 as Abyssal Nautilus, but instead of a deep-sea theme, it sends the anchor-wielder underground into a cave-dwelling look.

Although its skin_line tag simply says Legacy, this Standard skin is currently sold for 975 RP and comes without any chromas. Compared with his more eye-catching modern designs, it keeps things subdued and low-key.