I'm just starting up a new campaign, and was wondering if anyone would be able to homebrew up a Thrall of Kostchtchie Prestige Class. I would like it in a similar vein as the Thralls in the Book of Vile Darkness. I would prefer to have a 10 level PrC with relatively simple prerequisites. The abilities I'm looking for are an expansion on the Barbarian's abilities, along with some cold-themed traits like immunity to cold, maybe even the cold sub-type.
If anyone is able to do this, thanks a lot.