So far found one spell I’m researching anything dragon magic related or anything to do with dragons we can make this a guide since there’s not a lot talked about on here
Ryūjin - Wikipedia(%E9%BE%8D%E7%A5%9E%2C%20lit.,the%20sea%20in%20Japanese%20mythology.
Oh, we had a Dragon Magick Challenge a while back- there were some great entries with various spells and other resources shared by the Coven! I’ll add it here for anyone researching the topic:
There’s also:
look at this
it has a lot of information! 
Caroline Mitchell’s Dragon Path Oracle Cards is what I used to first connect with and learn about dragons. So, I have to recommend her!
