With level 18, you unlock a new item slot in your followers inventory:
However, neither the game nor much of goole makes any mention of this. What's the purpose of this focus?
Diablo – What’s the purpose of the followers “focus”
diablo-3
Related Topic
- Diablo 3 – Importance of The Black Rock Ledger
- Diablo – occasionally see lightning forks shoot out of the attacks
- Diablo – Dualwielding different speed weapons, why is the slower weapon graphically forced in to the main hand
- Diablo III – Strengths and Weaknesses of Each Follower
- Diablo – Which legendary items are more useful than a well-itemized Rare at max level/in Inferno
- Diablo III – How the Post-2.0 Puzzle Ring Works
- Diablo – How do the sets work that call additional followers to your side
Best Answer
It is simply a follower-specific piece of equipment, to give them stats and bonuses, same as any other equippable item.
Templars have Relics, Scoundrels have Tokens, and Enchantresses, like you've discovered, have Focii.