From Dota 2 Wiki
|This gem will modify an ability effect on the hero that weras the item it is socketed in.|
| Used By:
| Equip Slot:|
|Released||December 12, 2013 Patch|
Mastery Gems customize the graphical effect of one or more hero abilities. They are hero-specific. Mastery Gems should not be confused with Kinetic Gems, which customize model animations.
|Mastery: Northlight Illuminance||Illuminate||
Northlight Illuminance animation preview