How to Get the Obsidian Codex in Genshin Impact & Best Characters to Use It

2025.7.28 Genshin Updated, Genshin Impact, Artifacts : 2

📚 Introduction (with keyword targets)

The Obsidian Codex is a powerful artifact set introduced in Genshin Impact Version 5.0, exclusive to the Natlan region. This set boosts elemental reaction damage and offers bonus effects for Natlan characters.
In this guide, you’ll learn:

1. The exact location of the Obsidian Codex domain
2. Set effects and bonus stats
3. The best characters to use it with
4. Farming tips for maximum efficiency

If you’re looking to optimize your reaction-based Pyro or Dendro teams, this set is a must-have.

🗺️ How to Get the Obsidian Codex Artifact Set

1. Domain Name: Sanctum of Rainbow Spirits
2. Location: Coatepec Mountain, Natlan
3. Unlock Conditions: Complete Archon Quest Chapter V – Act III
4. Recommended Level: AR 30+ / World Level 3+
5. Other Drops: Scroll of the Hero of Cinder City

This domain unlocks as part of the Natlan main storyline and features lava-based terrain. Bring a well-balanced team to farm efficiently.

✨ Obsidian Codex Set Bonuses

1. 2-Piece Bonus: +15% to elemental reaction damage
2. 4-Piece Bonus: Further boosts elemental reaction damage by 25%
3. If the character is from Natlan, the bonus increases by an additional 15%
4. Max total: +40% reaction damage when triggered by a Natlan character

🔥 Best Characters to Use Obsidian Codex

🧨 Top Pyro DPS & Sub-DPS

1. Mualani (Natlan, Pyro): Best synergy. Designed for this set.
2. Klee: High damage, triggers frequent Overload and Burning.
3. Xiangling: Excellent sub-DPS for elemental reactions.
4. Thoma: Support with shield utility and Pyro reactions.

🌿 Reaction Enablers

1. Dendro Traveler: Enables Bloom, Burning, and more
2. Collei or Yaoyao: Work well when paired with Pyro units

💡 Farming Tips for Obsidian Codex

1. Bring at least one Natlan character to activate the enhanced 4-piece effect
2. Focus on Elemental Mastery or CRIT/ATK substats depending on the character
3. Farm on Domain Level IV for the best 5★ drops
4. Use Artifact Strongbox (available at the Alchemy table) to recycle unused 5★ artifacts
5. Co-op runs can speed up resin efficiency

✅ Final Thoughts – Why Obsidian Codex is Meta in Natlan

The Obsidian Codex artifact set is one of the most impactful additions in the Natlan update. With enhanced damage for reaction-based teams, and synergy for native Natlan characters, it fits perfectly in modern meta compositions.
Whether you’re building a Pyro DPS, support, or reaction enabler, this set deserves a spot in your farming rotation.