It's Been a Mad Falling Out Lord Max
Food for thought at the moment, feedback is appreciated.
OK, so since Arcane Magic is despised and seen as the cause of the apocalypse —Divine Magic has mostly been abandoned due to dramatic loss of faith; Dragons are now the primary source of magic in the world since there is a metric shit ton of them, as opposed to a standard butt ton.
Acquired-X will not count against any features you would normally gain through leveling, consider them Bonuses.
The feats will primarily be Item Creation Feats, gained from attempting to make items from dragon organs. Master Dragon Crafters typically gain their skills and knowledge from trail and error.
Items made from dragon organs inherently have residual magic auras, whether or not they have any magical bonus, spells, or real magical properties.
There will be other feats, such as Ac whilst fighting dragons. They will mostly function like perks in Fallout.
Templates may be along the lines of Dragonsoul: A character who landed the killing blow (Melee Only) on a dragon absorbed a part of its soul, bestowing upon him/her the strength of a dragon.
Please note that these rewards would be for extremely epic triumphs, extreme luck, or extreme diligence and perseverance and not a “Hey I just killed a dragon, what feats do i get.”
In short, if you guys take the time and effort, a dead dragon is the best loot.