Oh lest I forget, and thank you Mictlan for reminding me. That picture pretty much sums up the Demon Dragon, only the edits for it are the fact that they had A LOT less spikes. True they have more than your average dragon, but they aren't porcupines like in the picture. Just imagine some rear facing head spikes, spikes on the joints, and a few lines of spikes on their tails and lower backs.