It is relatively common. being that one or two are found by the team per Hard run. Scales are just more common. And... well, sadly, Scales are not more sought after than Water of Hvergelmir. If you look at the new items, many require *huge* amounts of Water of Hvergelmir. For Scales of Fafnir, it is mainly those super expensive armours that require a fortune in other items as well, including Water of Hvergelmir.
Items like Transitional Armour, Pikesmans Heavy Plated Vest, and Crossed Sharpshooters Mail, the ones I am assuming you think make Scales of Fafnir more wanted, are already very common and not many are crafted, just bought instead. So really it is the newer items drawing on materials, and with most of the newer items, as mentioned previously, having a higher dependency on Water of Hvergelmir than Scales of Fafnir, Water of Hvergelmir is made more expensive.
Anyways, this debate on prices isn't the point of this thread. This is you complaining about the drop rate. "The drop rate is fine" is an opinion, as is "the drop rate is too low." The truth is that the drop rate is exactly where developers want it, so if you want that Water get out there and play.
Items like Transitional Armour, Pikesmans Heavy Plated Vest, and Crossed Sharpshooters Mail, the ones I am assuming you think make Scales of Fafnir more wanted, are already very common and not many are crafted, just bought instead. So really it is the newer items drawing on materials, and with most of the newer items, as mentioned previously, having a higher dependency on Water of Hvergelmir than Scales of Fafnir, Water of Hvergelmir is made more expensive.
Anyways, this debate on prices isn't the point of this thread. This is you complaining about the drop rate. "The drop rate is fine" is an opinion, as is "the drop rate is too low." The truth is that the drop rate is exactly where developers want it, so if you want that Water get out there and play.