of the entire Space Wolves chapter
of Space Marines
in the Games Workshop Warhammer 40,000
Universe. Also sometimes known as Warhammer 40k
or just plain 40k
Ragnar, like the other members of his chapter is a heavily souped-up human with organ-redundancy and so on. I would put the rules down relating to him, but they have quite recently changed so I don't know them anymore.
He is the youngest of any of the chapter heads, and wields Frostfang and a Master-crafted Bolt Pistol. He wears Power Armour.