Zari is the End Boss of Book 5.
You can only attack Zari with Energy.
Name (Tier) | Cost | Notable Drops | Total HP |
Zari V | Free | Bloodstone | 18,000,000 |
You can sell the Bloodstone she drops to The Frozen Monks for 40 Platinum. They are located at the most northern part of the map. Or you can keep it to Enhance items in the Oakgate Treasure Shop located in Book 4.