Too bad this doesn't have Wyvern's hp +10% like the af so if you switched to Drachen for healing and then back once you were done healing your wyvern would have full.
I have heard that it only drops in Phomiuna Aqueducts and the Scratuim but this site says it drops in the meadows and the coast as well. So is this true or am I stuck tring to get a party to get party together and go hunt these.