Rainslasher is a 4-star Claymore in Genshin Impact, designed for characters who specialize in triggering powerful Hydro and Electro elemental reactions. With its unique Elemental Mastery bonus and targeted damage boost against enemies affected by these elements, it’s a powerful option for reaction-based team compositions built around Swirl, Overload, Electro-Charged, and Bloom-type reactions.
Weapon Overview: What Makes Rainslasher Unique?
Rainslasher is a versatile 4-star Claymore that pairs exceptionally well with Elemental Reaction-driven builds. It boasts a high Elemental Mastery (EM) sub-stat and a passive that significantly boosts damage against enemies affected by Electro or Hydro.
- Weapon Type: Claymore
- Rarity: 4★
- Base Attack (Level 90): 510
- Sub-stat: Elemental Mastery (165 at Level 90)
- Passive Skill – Bane of Storm and Tide: Increases damage against enemies affected by Hydro or Electro by 20% at Refinement 1, up to 36% at Refinement 5.
Visually, the weapon features a glowing, fluorescent blade, symbolizing its elemental potency and appeal for players focusing on aesthetics as well as utility.
How to Obtain Rainslasher
You can obtain Rainslasher through Genshin Impact’s weapon gacha system:
- Wishing Banner: Epitome Invocation (Standard Weapon Banner)
- Availability: Permanently available in the banner pool
As this is not a limited-time weapon, players can acquire it during any banner cycle that includes standard 4-star weapons.
Base Stats and Passive Skill Scaling
| Weapon Level | Base ATK | Elemental Mastery |
|---|---|---|
| 1/20 | 42 | 36 |
| 20/20 | 109 | 64 |
| 40/40 | 205 | 93 |
| 50/50 | 266 | 107 |
| 70/70 | 388 | 136 |
| 90/90 | 510 | 165 |
Passive Ability: Bane of Storm and Tide
- Refinement 1: +20% damage vs. Hydro/Electro-affected enemies
- Refinement 2: +24%
- Refinement 3: +28%
- Refinement 4: +32%
- Refinement 5: +36%
The passive directly synergizes with elemental reactions, making it ideal for Dendro, Electro, Hydro and Pyro-based teams.
Ascension Materials Required
To ascend Rainslasher to its highest level, the following materials are required:
- Weapon Ascension Domains: Hidden Palace of Lianshan Formula
Materials by Tier
- Mist Veiled Lead Elixir → Gold Elixir (Domain drop)
- Divining Scroll → Sealed Scroll → Forbidden Curse Scroll (Dropped by Samachurls)
- Energy Nectar line (For certain weekly bosses depending on patch state)
Reach Level 90 by combining weapon ascension items with Mora and Enhancement Ores (approximately 607 Mystic Enhancement Ore for full level-up).
Best Characters to Use Rainslasher
Rainslasher is optimal for characters whose kits involve frequent Electro or Hydro applications or rely heavily on reaction damage.
Top Synergizing Characters
- Beidou: Creates consistent Electro damage with her Burst paired with Hydro teammates like Xingqiu. Ideal for Electro-Charged and Hyperbloom teams.
- Kaveh: Amplifies Bloom damage using high Elemental Mastery and Dendro-Hydro core reactions.
- Razor: Provides sustained Electro DMG and benefits from both EM and the passive against Hydro mobs.
- Diluc: Not purely ideal, but can utilize Rainslasher in niche Overload/Vaporize comps built with EM stacking.
Other Viable Characters
- Dehya: Can fit in reaction-based team comps focusing on Burning or Overload when built around EM.
- Chongyun & Xinyan: Less optimal but still usable in quick-swap or reaction-heavy setups when built for EM.
Optimal Team Builds and Artifact Sets
To maximize Rainslasher’s potential, gear up your characters with sets that prioritize EM and reaction damage.
Recommended Artifact Sets
- Gilded Dreams: +EM and boosts ATK or Elemental Mastery depending on team comp synergy.
- Flower of Paradise Lost: Tailored for Bloom/Hyperbloom/Burgeon teams. Excellent match for Kaveh.
- Thundering Fury: Effective for Electro-focused builds with Beidou or Razor.
Substat Priorities
- Main Stat (Sands): Elemental Mastery or ATK%
- Goblet: Elemental Mastery or Elemental DMG Bonus
- Circlet: Crit Rate/DMG or EM depending on the build
Team Role Archetypes
- Hyperbloom Core: Beidou + Nahida + Xingqiu/Yelan + Kuki Shinobu
- Bloom Healing Support: Kaveh + Nilou + Barbara + Dendro Traveler
- Electro-Charged: Razor + Fischl + Mona + Sucrose
Frequently Asked Questions about Rainslasher in Genshin Impact
Is Rainslasher a good weapon?
Yes, Rainslasher can be extremely effective when used with characters triggering Hydro or Electro reactions frequently. Its Elemental Mastery sub-stat makes it excellent for reaction-based teams.
How do I get Rainslasher?
Rainslasher can be obtained from the Epitome Invocation weapon banner, part of Genshin Impact’s standard gacha system.
Who is the best character for Rainslasher?
Beidou and Kaveh are top-tier users due to their reaction-centric kits paired with Hydro or Electro elements. Razor and Diluc are also strong secondary options.
Can Rainslasher be used on Dehya?
Dehya can use Rainslasher, but it is not optimal unless built specifically for reaction damage in EM-heavy Overload team comps.
Is Rainslasher better than Prototype Archaic?
It depends. Prototype Archaic is stronger for raw ATK builds, while Rainslasher shines in reaction-focused teams due to its EM sub-stat and passive bonus.
What artifact set works well with Rainslasher?
Gilded Dreams, Flower of Paradise Lost, and Thundering Fury are ideal choices based on the character and team comp.
Is Rainslasher F2P-friendly?
Yes, as a 4-star weapon available in the standard banner, it is more accessible than most 5-star weapons and works well with F2P friendly builds.
Can Rainslasher be used for Pyro characters?
Yes, in niche scenarios with Overload reactions (like on Diluc or Xinyan), Rainslasher can add substantial value when EM is prioritized.
Does Rainslasher benefit from refinements?
Absolutely. Each refinement increases the damage bonus against Hydro/Electro enemies up to 36%, significantly contributing to overall DPS output.
What role suits Rainslasher best?
Rainslasher is best used on sub-DPS or reaction-based main DPS roles that apply or trigger Electro/Hydro interactions regularly.
