Standing as tall as an adult Regnan at the shoulder, this juvenile mammoth has a broad head and short, newly-grown tusks that still gleam white, as opposed to the yellowed tint normally seen in more mature pachyderms. His reddish-brown coat is long and shaggy, but and well cared-for, and his teeth are in excellent condition if anybody gets interested enough to look. His only noticeable blemish is the burn scar along his left flank and haunch, covered by the very beginnings of new hair growth that is substantially darker than the lighter reddish fur on the rest of his body. A matching scar above his left eye calls to mind a puncture wound.

The animal has a mellow, sometimes lazy temperament; his favorite activities used to be knocking a rawhide ball around with his master Einar, or enjoying the seemingly endless practice of grooming, cleaning, and being checked for parasites. Though he remains friendly to the survivors of the Forty-Second Special Battalion (and in general), Ruk nonetheless has a quieter demeanor since Einar's death at Krepost Varrd, seeming to take less joy in his food and often trumpeting his loneliness at other soldiers he considers friends.