As you’ve probably heard by now, the crafted Witcher school gear (Bear, Cat, Griffin, and Wolf) is the best armor in the game once you upgrade them to the highest level (mastercraft).
To find the diagrams for these sets, you can either stumble on them randomly (which is difficult), or buy maps from specific merchants that will reveal the location of the diagrams for each gear set (or its upgraded version).
Below you can find the locations of these merchants, to make it easy for you to obtain your own Ursine, Feline, Wolf or Griffin sets.
*Note*: Keep in mind that in order to craft each upgrade level, you need the previous armor set, so you’ll have to craft all the way up from normal to mastercrafted.
Bear (Ursine) Gear Map Vendors
Normal Set Map – the map for the basic Ursine set (Ibrahim Savi’s First Map) can be bought from the armorer in Oxenfurt.
Enhanced, Superior, and Mastercraft Set Maps – The maps for the enhanced, as well as the superior and mastercrafted set of Bear (Ursine) Gear can all be purchased from the armorer in Kaer Trolde in Skellige.
Cat (Feline) Gear Map Vendors
Normal Set Map – Merchant in the village of Blackbough, near the Crow’s Perch in Velen; Enhanced Set – Blacksmith in Blackbough.
Superior Set Map – merchant in Crow’s Perch (the one by the armorer)
Mastercraft Set Map – blacksmith in village of Lindenvale, to the east of Crow’s Perch.
Griffin Gear Map Vendors
Normal and Enhanced Set Maps – the armorer in the village of Midcopse in western Velen.
Superior Set Map – Armorer in Hierarch Square in Novigrad; Mastercraft Set – Hattori (master blacksmith in Novigrad).
Wolf Gear Map Vendors
The wolf gear set was added in a DLC in June. Just like the other witcher sets, you can buy maps for it from vendors. There are a total of 6 maps (they are actually called notes); whenever you read any of the notes, you will automatically get the quest and location for the normal set. Notes 1&2 are for the Enhanced Set; 3&4 for Superior, and 5&6 for the Mastercrafted Set.
Notes #1 & 5 – Hattori (master blacksmith in Novigrad)
Notes # 2 – Lindenvale blacksmith
Notes # 3 & 6 – Kaer Trolde Armorer
Notes # 4 – Armorer in Hierarch Square of Novigrad