Board Thread:Game Discussion/@comment-87.212.116.195-20130626214641/@comment-4199297-20130701024251

http://quickgamer.net/games/knights-dragons/armors/ seems to suggest some people have gotten Sky Guardian through fusion of Living Flame + Crius

Though fusion is always a _chance_, not a _certainty_. (and I think that I read somewhere that you can only get the "+" version of non-craftable armor from chests, not fusion)