Favonius Codex is a 4-Star Catalyst in Genshin Impact 4.3. See how to get the Favonius Codex, weapon stats and bonus effects, skill, rarity, stats at level 90, ascension materials, and other information here!

Best Characters to Use Favonius Codex

All Recommended Characters

Lisa	Barbara	Sucrose
Mona	Yanfei	Yae Miko
Baizhu	Charlotte	Xianyun
Citlali

Who is the Favonius Codex Good For?

Overall Good for Supports

As long as a character has good investment in CRIT Rate, as well as a reliable Elemental Burst, the Favonius Codex is a good weapon for them to use!

Note that while you can use this on certain catalyst characters, their best in slot weapons may vary. For more information on their best weapons, check out our character tier list with their best in slot weapons!

Character Tier List

Favonius Codex Stats and General Information

Weapon Information

Favonius Codex
Type	Catalyst
Base ATK	42
Rarity	★★★★
Bonus Effect	Energy Recharge + 10.0%
Skill	Windfall ・CRIT Hits have a 60% chance to generate a small amount of Elemental Particles, which will regenerate 6 Energy for the character. Can only occur once every 12s.
Description	A secret tome that belonged to the knights of Favonius. It describes the logic and power of elements and matter.
How to Obtain	Gacha

Favonius Codex Stats

Favonius Codex Refinement Levels

Favonius Windfall Weapon Effect

Favonius Codex's Windfall effect can only be activated when the active character equipping this weapon deals a critical hit while on-field.

This means that abilities that are used off-field like Lisa or Sucrose's Elemental Bursts won't proc this effect even if it crits, until they are switched back into the field. The energy particles generated can be shared to another character regardless.

How to Increase Energy Recharge

How to Get Favonius Codex

Wish on the Weapon Banner in Version 5.3 Phase 1

Favonius Codex can be obtained at a normal rate by pulling on any of the current wish banners except for Beginner's Wish.

You can also get Favonius Codex on Rate-Up in the Epitome Invocation Wish Banner from January 1, 2025 to January 21, 2025 alongside A Thousand Blazing Suns and Starcaller's Watch for Phase 2 of Version 5.2.

Version 5.3 Release Date and Details

Related Wish Banner Guides

Wish Banner Guides
Banner Info	Wish Sim	All Wishes

Available in Chronicled Wish Banner

All Weapons in 5.3 Chronicled Wish Banner

Favonius Codex is featured in the Chronicled Wish Banner that is releasing on January 21, 2025 until February 11, 2025 in Phase 2 of Version 5.3!

Remembrance of Jade and Stone Banner

Favonius Codex Ascension Materials

List of Materials Needed

20 → 40	Tile of Decarabian's Tower ×3 Heavy Horn ×3 Divining Scroll ×2
40 → 50	Debris of Decarabian's City ×3 Heavy Horn ×12 Divining Scroll ×8
50 → 60	Debris of Decarabian's City ×6 Black Bronze Horn ×6 Sealed Scroll ×6
60 → 70	Fragment of Decarabian's Epic ×3 Black Bronze Horn ×12 Sealed Scroll ×9
70 → 80	Fragment of Decarabian's Epic ×6 Black Crystal Horn ×9 Forbidden Curse Scroll ×6
80 → 90	Scattered Piece of Decarabian's Dream ×4 Black Crystal Horn ×18 Forbidden Curse Scroll ×12

Related Weapons

All Weapons

List of Weapons

List of Catalysts

Related Weapons
A Thousand Floating Dreams	Cashflow Supervision	Crane's Echoing Call
Everlasting Moonglow	Jadefall's Splendor	Kagura's Verity
Lost Prayer to the Sacred Winds	Memory of Dust	Skyward Atlas
Starcaller's Watch	Surf's Up	Tome of the Eternal Flow
Tulaytullah's Remembrance	Ash-Graven Drinking Horn	Ballad of the Boundless Blue
Blackcliff Agate	Dodoco Tales	Eye of Perception
Favonius Codex	Flowing Purity	Frostbearer
Fruit of Fulfillment	Hakushin Ring	Mappa Mare
Oathsworn Eye	Prototype Amber	Ring of Yaxche
Royal Grimoire	Sacrificial Fragments	Sacrificial Jade
Solar Pearl	The Widsith	Wandering Evenstar
Waveriding Whirl	Wine and Song	Emerald Orb
Magic Guide	Otherworldly Story	Thrilling Tales of Dragon Slayers
Twin Nephrite	Pocket Grimoire	Apprentice's Notes

List of Catalysts