- Modify Item Level
- Optional Crafting Reagent
- "An Optional Reagent that sets the item level and required level on a crafted item."
Crafter's Marks control the item level and required level on any crafted item made with Shadowlands proficiency:
Source[]
Crafter's Mark are created by a variety of professions.
| Crafter's Mark | Type | Alchemy | Enchanting | Engineering | Blacksmithing | Inscription | Tailoring | Leatherworking | Jewelcrafting |
|---|---|---|---|---|---|---|---|---|---|
 [Novice Crafter's Mark] |
Minor | Y | Y | Y | Y | Y | Y | Y | Y |
 [Crafter's Mark I] |
Minor | Y | Y | Y | Y | Y | Y | Y | Y |
 [Crafter's Mark II] |
Major | Y | Y | Y | Y | Y | Y | Y | Y |
 [Crafter's Mark III] |
Major | Y | N | Y | Y | N | Y | Y | Y |
 [Crafter's Mark of the Chained Isle] |
Major | Y | N | Y | Y | N | Y | Y | Y |
| Crafter's Mark IV | Major | Y | N | Y | Y | N | Y | Y | Y |
| Crafter's Mark of the First Ones | Major | Y | N | Y | Y | N | Y | Y | Y |