The dragon does excist and it is stronger then any enemy according to me. He uses very very heavy attack powers and Fallen One. But his name isn't Czardragon. It's Doomdragon. I encoutered in on The Feldt with a few strong persons in my team. I eventually had to use Warp with Relm, who had 1 HP (!), to escape with all the others death. This happened after not more then two minutes