This diagram can be purchased from a number of craftsmen, including:
- Kwatermistrz at the Nilfgaardzki Garnizon
- Kowal in Wieś Konary
- Guślarz
- Keira Metz
- Kowal in Oxenfurt
- Alchemik at the Krematorium
- Hattori in Novigrad
- Kowal in the Novigrad Targ rybny
- Gremista
- Zaklinacz słów