Weapon details
A book that once belonged to a court mage of Mondstadt who served the nobility. It contains faithful and comprehensive historical accounts as well as magic spells.
Focus
R5
Upon damaging an opponent, increases CRIT Rate by 16%. Max 5 stacks. A CRIT Hit removes all stacks.
Phase 0
Level cap: 20
Adventure rank required: -
Mora: -
Materials
-
Phase 1
Level cap: 40
Adventure rank required: 15
Mora: 5,000
Materials
Heavy Horn x3 
Recruit's Insignia x2 
Tile of Decarabian's Tower x3 Phase 2
Level cap: 50
Adventure rank required: 25
Mora: 15,000
Materials
Heavy Horn x12 Recruit's Insignia x8 
Debris of Decarabian's City x3 Phase 3
Level cap: 60
Adventure rank required: 30
Mora: 20,000
Materials
Black Bronze Horn x6 
Sergeant's Insignia x6 Debris of Decarabian's City x6 Phase 4
Level cap: 70
Adventure rank required: 35
Mora: 30,000
Materials
Black Bronze Horn x12 Sergeant's Insignia x9 
Fragment of Decarabian's Epic x3 Phase 5
Level cap: 80
Adventure rank required: 40
Mora: 35,000
Materials
Black Crystal Horn x9 
Lieutenant's Insignia x6 Fragment of Decarabian's Epic x6 Phase 6
Level cap: 90
Adventure rank required: 50
Mora: 45,000
Materials
Black Crystal Horn x18 Lieutenant's Insignia x12 
Scattered Piece of Decarabian's Dream x4