You can craft throughout the game from forest haven to oktal. Just look for the blacksmith in whatever town you wish to craft gear for... Crafting drops off at 15 and starts again at 55.

Imo crafting really isn't something you should set out to accomplish. Rather just farm, see what you get and decide accordingly. With the exception of the amulet event, and the release of new sets, farming to craft specific sets can get EXTREMELY time consuming. Especially when you start trying to farm for 55 recipes.

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