Acclaim Entertainment bought Valiant comics in 1994, leading to a reboot of the Valiant characters. In 1997, the graphic novel series "Eternal Warriors" reintroduced Ivar and his two brothers as Vikings, the sons of Mog and Nin, who become immortal due to a special plant. Collectively called the "Eternal Warriors," the three brothers fight evil together and share immortality with others over the centuries, creating the "Forever Family." The series started with the 1997 graphic novel "Eternal Warriors: Time and Treachery" by writer Art Holcomb and artists Doug Wheatley and John Floyd. The series ended in 1998 after five more graphic novels. In chronological order, they were: "Eternal Warriors: Digital Alchemy, Eternal Warriors: Archer & Armstong, Eternal Warriors: Blackworks, Eternal Warriors: Mog," and "Eternal Warriors: The Immortal Enemy."