Mythic Affix: Codex > Mythics (between LegendEx & Eternals) > Affixes > Recipe. for beginners, all of the Mythic Affixes have 4x ? for the Recipe. it says that you have a chance to unlock part of a Recipe every time you put a Myth Stone into a Socket on an item. the rarer the Myth Stone, the higher the chance to unlock part of a Recipe.
if you can’t wait, here is a Guide to help you.
Resource Mythics can go on any item.
you can only have one Resource Mythic. if you have 2 or more, only one of them will work, the others are just taking up space.
the other Mythics can only go on one item, so if you want 2 Chest Mythics, you can only use one of them.
you can only put 1 Mythic on each item, so if you have one on each item, you would have a total of 6 Mythics. you can’t put Mythics on Pets.
it doesn’t matter which order you put the Myth Stones on an item to make a Mythic Item, just that you use the correct 4 for the Recipe. (I tested this. not only that, but when I made a set of items with only Myth Stones, I accidently made a few Mythic Items. so if you don’t want a Mythic you don’t want, check the Recipe first). also, if you have an item with 6 Sockets when you make a Mythic, 4 are used to make the Mythic, and a fifth one is used up to make space for the Mythic affix, leaving you with 1 Socket (I discovered this when I was doing my testing).