Makes me ill how these things are in demand, but this is the shard they were made for. In the King Edward range of taming id give this one a 8 for PvP and a 9.5 for farming. Based on the good numbers and the constant demand for dreads i'd honestly sell this myself for a minimum starting bid of 20 million. Based on the fact they are so rare I probably wouldnt sell it at all and only do one of a kind trades for it.
So with that in mind, to all you people that want one and disagree with my pricing, just remember that all it takes is one event with them making even a short return to drop the price in the toilet.