Genshin Impact: Tome of the Eternal Flow weapon guide – How to get it, ascension materials

Genshin Impact Version 4.1
Image: HoYoverse

Genshin Impact has a huge catalogue of different weapons to summon for and collect in the game. In Genshin Impact Version 4.1, players can look to obtain the Tome of Eternal Flow weapon, a 5-star Catalyst and Neuvillette’s signature weapon. This weapon is designed to work best with Neuvillette, but strong stats and a unique passive can be an asset to any Genshin Impact character. Here’s our guide on the Tome of the Eternal Flow weapon in Genshin Impact.

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How to get the Tome of Eternal Flow weapon in Genshin Impact

(10) Version 4.1 To The Stars Shining In The Depths Trailer Genshin Impact Youtube 0 5 46

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This weapon can be obtained on the Weapon Event Wish banner as a limited-time weapon. Traditionally, 5-star weapons are paired up with their signature 5-star character. The Tome of the Eternal Flow is Neuvillette’s signature weapon, so you can expect to be able to pull this weapon when Neuvillette is a featured character in the Character Event Wish banner. Be on the lookout for Neuvillette’s Character Event Wish banner if you want to obtain this weapon.

Related: Genshin Impact: Best Build for Neuvillette – weapons & artifacts

Tome of the Eternal Flow’s stats

  • Base Attack: 44 – 542
  • Substat: Crit DMG%
  • Substat Values: 19% – 88%
  • Passive: Aeon Wave: “HP is increased by 16%. When current HP increases or decreases, Charged Attack DMG will be increased by 14% for 4s. Max 3 stacks. This effect can be triggered once every 0.3s. When the character has 3 stacks or a third stack’s duration refreshes, 8 Energy will be restored. This Energy restoration effect can be triggered once every 12s.”

Tome of the Eternal Flow ascension materials

  • Level 20 – 40: x5 Dross of the Pure Sacred Dewdrop, x5 Rift Core, x3 Meshing Gear, x10,000 Mora
  • Level 40 – 50: x5 Sublimation of the Pure Sacred Dewdrop, x18 Rift Core, x12 Meshing Gear, x20,000 Mora
  • Level 50 – 60: x9 Sublimation of the Pure Sacred Dewdrop, x9 Foreign Synapse, x9 Mechanical Spur Gear, x30,000 Mora
  • Level 60 – 70: x5 Spring of the Pure Sacred Dewdrop, x18 Foreign Synapse, x14 Mechanical Spur Gear, x45,000 Mora
  • Level 70 – 80: x9 Spring of the Pure Sacred Dewdrop, x14 Alien Life Core, x9 Artificed Dynamic Gear, x55,000 Mora
  • Level 80 – 90: x6 Essence of the Pure Sacred Dewdrop, x27 Alien Life Core, x18 Artificed Dynamic Gear, x65,000 Mora

Tome of the Eternal Flow synergies

(8) Character Teaser Neuvillette Watcher In The Deep Genshin Impact Youtube 0 0 59 best build tome of the eternal flow

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  • Neuvillette: This weapon is Neuvillette’s signature weapon and is best used on him. The Crit DMG substat is great for increasing his damage, and the passive is tailor-made to fit with his kit. As some of Neuvillette’s damage scales with HP, the HP boost from this weapon’s passive helps him deal more damage. Additionally, Neuvillette has a self HP-drain mechanic, which will also increase his Charged Attack DMG, the core of his damage.
  • Barbara: Barbara has a niche DPS build that can take advantage of this item where a majority of her damage comes from her Charged Attacks. If you’re feeling silly and want to turn Barbara into a DPS character instead of a healer, this weapon will suit her well.

Genshin Impact is now available on PC, mobile, and console platforms. Download the game from its official website. Check out more Genshin Impact guides from our guides and features hub.

Joshua Chu
About The Author
Joshua Chu is a Contributing Writer for PC Invasion since June 2021. His undying love for live-service games like Overwatch 2, Valorant, and Honkai: Star Rail (amongst other soul-rending games) has led him to spend hours and hours on his PC. After earning his Print Journalism degree at Pennsylvania State University, he proceeded to freelance for a variety of sites, with other bylines including Gamepur and Kotaku. He is probably sad he demoted in rank in Overwatch.