The final block to be released, Hunters Block consists of The Hunters, Rise of Saruman, and Treachery & Deceit. It was never officialy made a format, and is the least played block format, partly because it is the most egregious example of power creep. Decklists can be found here at this TLHH subforum.
X-List and R-List
There are no cards on the X- or R-List of Hunters block. Although the Hunters Block starter decks contain War of the Ring sites, currently it is only legal to play sites from Hunters Block.