Weapon details
Rainslasher
Type: Claymore
Rarity: ★★★★ Base ATK: 42 Elemental Mastery: 36
A fluorescent greatsword with no sharp edge that crushes enemies with brute force and raw power.
Passive effect
Bane of Storm and Tide
R1
Increases DMG against opponents affected by Hydro or Electro by 20%.
R2
Increases DMG against opponents affected by Hydro or Electro by 24%.
R3
Increases DMG against opponents affected by Hydro or Electro by 28%.
R4
Increases DMG against opponents affected by Hydro or Electro by 32%.
R5
Increases DMG against opponents affected by Hydro or Electro by 36%.
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
Divining Scroll x2 
Mist Grass Pollen x3 
Mist Veiled Lead Elixir x3 Phase 2
Level cap: 50
Adventure rank required: 25
Mora: 15,000
Materials
Divining Scroll x8 Mist Grass Pollen x12 
Mist Veiled Mercury Elixir x3 Phase 3
Level cap: 60
Adventure rank required: 30
Mora: 20,000
Materials
Sealed Scroll x6 
Mist Grass x6 Mist Veiled Mercury Elixir x6 Phase 4
Level cap: 70
Adventure rank required: 35
Mora: 30,000
Materials
Sealed Scroll x9 Mist Grass x12 
Mist Veiled Gold Elixir x3 Phase 5
Level cap: 80
Adventure rank required: 40
Mora: 35,000
Materials
Forbidden Curse Scroll x6 
Mist Grass Wick x9 Mist Veiled Gold Elixir x6 Phase 6
Level cap: 90
Adventure rank required: 50
Mora: 45,000
Materials
Forbidden Curse Scroll x12 Mist Grass Wick x18 
Mist Veiled Primo Elixir x4