Yumemizuki Mizuki is Genshin Impact’s newest 5-star Anemo Catalyst user from Inazuma. Built around high Elemental Mastery and explosive Swirl reactions, Mizuki rewards players who harness and synergize her kit efficiently. She can easily cause damage, but achieving her weapon’s optimization is difficult. Whether you’re targeting synergy, reaction uptime, or maximum Swirl damage, this guide covers the best weapons for her arsenal—ranked, analyzed, and validated.
 Yumemizuki Mizuki |  Anemo |  Catalyst |  Inazuma |
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| Ascension | Builds | ||
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5. Mappa Mare
- Base ATK (Lv. 90): 565
- Elemental Mastery (Lv. 90): 110
- Effect (R5): Triggering Elemental Reactions grants 16% Elemental DMG bonus for 10s (2 stacks max)
As a craftable Catalyst, Mappa Mare offers incredible F2P value. While its Elemental Mastery stat trails behind others, it compensates with the highest base ATK among 4-star contenders and a reaction-based buff. Mizuki benefits from consistent Swirl uptime, so Mappa Mare’s passive synergizes well with her kit.
For players leveling up new characters and weapon sets simultaneously, especially when using Genshin boosting services, this Catalyst is a highly efficient and reliable alternative.
4. Starcaller’s Watch (Citlali’s Signature)
- Base ATK: 542
- Elemental Mastery: 265
- Effect: Grants Mirror of Night effect post-shielding; boosts DMG by 28%
This 5-star weapon is unsuitable for Mizuki, as she has no innate shield mechanics. The Mirror of Night effect is wasted, but the base stats alone (265 EM and 100 extra EM from passive) offer enough value. It’s a raw stat-stick option that makes sense for players who value EM stacking.
Top-ups for premium banners are smoother through reliable Genshin top-up center like U7BUY, where consistent savings support multi-pull strategies.
3. Sacrificial Fragments
- Base ATK: 454
- Elemental Mastery: 221
- Effect (R5): 80% chance to reset Elemental Skill CD every 16 seconds
One of the most versatile 4-star weapons in the game, Sacrificial Fragments complements Mizuki’s reliance on Elemental Skills. The cooldown reset extends her Swirl window and boosts DPS via Dreamdrifter uptime.
| Weapon | Base ATK | EM | Utility |
| Sacrificial Fragments | 454 | 221 | Skill reset to extend the DPS cycle |
| Mappa Mare | 565 | 110 | High ATK + EM synergy |
| Starcaller’s Watch | 542 | 265 | High EM but suboptimal effect |
For meta seekers exploring combinations, refer to the Genshin Impact best 4-star weapons for each character database and sort by EM scaling.
2. A Thousand Floating Dreams (Nahida’s Signature)
- Base ATK: 542
- Elemental Mastery: 265
- Effect: Shared EM and bonus DMG based on party composition
This Catalyst thrives in both mono-element and mixed teams. Its passive gives Mizuki either extra EM (same element) or increased Elemental DMG (different element), with up to three stacks. It also buffs teammates’ EM.
Though Mizuki doesn’t scale from party synergy like Nahida, the sheer stat density makes A Thousand Floating Dreams one of the top-tier options.
For deeper synergy guides, the Genshin Impact best weapons for characters tier list thread on forums like GameFAQs and Honey Hunter offers comparisons across elements.
1. Sunny Morning Sleep-in (Mizuki’s Signature)
- Base ATK: 542
- Elemental Mastery: 265
- Effect: Grants up to 248 EM post-Swirl, Skill, and Burst triggers
The definitive BiS for Mizuki. This weapon transforms Mizuki into a constant source of EM amplification, peaking at over 500 EM from weapon stats alone. Its passive grants include:
- +120 EM for 6s after Swirl
- +96 EM for 9s after Skill hit
- +32 EM for 30s after Burst hit
These buffs stack and refresh throughout her rotation, maximizing damage during her Dreamdrifter state.
If your account lacks this weapon and you’re not planning to pull soon, you can buy Genshin Impact account bundles with Mizuki pre-unlocked from reputable platforms like U7BUY to bypass the long, stressful journey.
Signature Catalyst Comparison Chart
| Weapon | Total EM | Synergy with Mizuki | Availability |
| Sunny Morning Sleep-in | 513 | Perfect fit | Event Exclusive |
| A Thousand Floating Dreams | 305–345 | Good | Weapon Banner Only |
| Starcaller’s Watch | 365 | Stat-fit, poor passive | Limited 5★ |
For further insights, Reddit’s Genshin Impact best weapons for characters megathread offers anecdotal reports and team synergy reviews.
Tier List Positioning
Using aggregated data from KQM, Honey Hunter, and GenshinLab, here is Mizuki’s Catalyst tier placement:
Genshin Impact Weapon Tier List (Catalyst – Anemo DPS)
| Tier | Catalyst | Notes |
| S | Sunny Morning Sleep-in | Best in slot for EM stacking and Swirls |
| A | A Thousand Floating Dreams | Versatile for hybrid teams |
| B | Sacrificial Fragments | High uptime, F2P accessible |
| B | Mappa Mare | Budget EM boost with offensive passive |
| C | Starcaller’s Watch | High EM but no synergy with Mizuki’s kit |
For full builds across characters, consult the Top 10 best weapons in Genshin Impact spreadsheet hosted on the official miHoYo forums.
Early Game Options
Mizuki’s EM dependency makes it difficult for her to optimize early. While Mappa Mare works well, players should look to farm materials in advance. Sacrificial Fragments is a superior choice if luck favors you early in banner pulls.
You can view dedicated reviews under Genshin Impact’s best weapons for characters early on the Wiki or Hoyolab.
Genshin Signature Weapons
Signature Catalysts provide synergy that’s often indispensable and hardly replaceable. Mizuki’s weapon is no different—designed to enable her Dreamdrifter form’s full potential. For those optimizing characters across the board, check for the Genshin signature weapons tracker, where passives, stats, and rotations are modeled.
Statistically, Mizuki’s sword-tier equivalents fall far behind her Catalyst options. But to satisfy your curiosity, this is a good example of the best sword in Genshin Impact Tier list; EM-focused weapons like Xiphos’ Moonlight benefit similar Elemental builds.
