@perseusdoge hope this helps. when you look at the LegendEx in the Codex, you will notice that some affixes will only go on some items, like Block can only be rolled on OH weapons, but can be found on some other Warrior Legend items as loot. some Set affixes can only be found on 1 or 2 Classes items, but can be rolled by any Class, or can only be rolled on 1 Classes items, or only found on an item as loot. Blood Magic Set can only be rolled with Amethyst. there are some affixes that aren’t used much by other players, so finding out about them is trial and error, but most of the affixes you can roll or not are in these 2 lists.