I haven't used FR in ages and DO plan on going back, but I'm trying to somewhat clean house beforehand. These guys are all on the chopping block, offer whatever. Currency > everything else and I genuinely do not know the value of any of those dragons, so just offer what you're comf with.
I'll probably move more dragons into that tab down the line, so check back. Feel free to offer on others not in that tab, just know First Gens in my hib. den are not going anywhere.
