User blog comment:Lightning the Skrill/What is Icebane/@comment-5690373-20150313140610

Well, we've only seen one Skrill so we can't really say they can't be blue. Plus Rise of Berk is constantly making colors up for the dragons. As for the arctic thing, I think that was some form of Ionix exclusive sets since there is also an Arctic Cloudjumper, similar to how Lego has golden figurines.