Weapon details
Kagotsurube Isshin
Type: Sword
Rarity: ★★★★ Base ATK: 42 ATK%: 9%
This famed blade was born in a nation to the far north. But in the name of "Isshin," it was stained with many a dark deed on its home-bound journey.
Passive effect
Isshin Art Clarity
R1
When a Normal, Charged, or Plunging Attack hits an opponent, it will whip up a Hewing Gale, dealing AoE DMG equal to 180% of ATK and increasing ATK by 15% for 8s. This effect can be triggered once every 8s.
Cost per phase
Phase 0
Level cap: 20
Adventure rank required: -
Mora: -
Materials
-
Phase 1
Level cap: 40
Adventure rank required: 15
Mora: 5,000
Materials
Gloomy Statuette x3 
Spectral Husk x2 
Mask of the Wicked Lieutenant x3 Phase 2
Level cap: 50
Adventure rank required: 25
Mora: 15,000
Materials
Gloomy Statuette x12 Spectral Husk x8 
Mask of the Tiger's Bite x3 Phase 3
Level cap: 60
Adventure rank required: 30
Mora: 20,000
Materials
Dark Statuette x6 
Spectral Heart x6 Mask of the Tiger's Bite x6 Phase 4
Level cap: 70
Adventure rank required: 35
Mora: 30,000
Materials
Dark Statuette x12 Spectral Heart x9 
Mask of the One-Horned x3 Phase 5
Level cap: 80
Adventure rank required: 40
Mora: 35,000
Materials
Deathly Statuette x9 
Spectral Nucleus x6 Mask of the One-Horned x6 Phase 6
Level cap: 90
Adventure rank required: 50
Mora: 45,000
Materials
Deathly Statuette x18 Spectral Nucleus x12 
Mask of the Kijin x4