His (Odin's) men rushed forward without armor, were as mad as dogs or wolves, bit their shields, and were as strong as bears or wild bulls, and killed people at a blow, but neither fire nor iron told upon themselves.
The Úlfhéðnar (singular Úlfhéðinn) mentioned in the Vatnsdœla saga, Haraldskvæði and the Völsunga saga were said to wear the pelt of a wolf upon their heads when they entered battle. (For example: Bernhari, Haimric, Hlodwig, Theudberga, Warinhari, etc.) Úlfhéðnar are sometimes described as Odin's special warriors, with the pelt from a wolf and a spear as distinguishing features.
anyways i suggest wolf lord be put into 1a but only drop a wolf pelt for zerker... and maybe a giant grizzly could drop some kinda bear pelt(maybe not tho, dont know what it would be called since its already used and actually does have alot of armor :/)...
anyways i dont see what it would hurt, and it would be something to do.. kinda like bigfoot style lol...