Genshin Impact

Emperor of Fire and Iron Location and Boss Guide

Genshin Impact - Emperor of Fire and Iron Boss Location Guide

The Emperor of Fire and Iron is a world boss found in an underwater cave in Fontaine for Genshin Impact 4.0. Check out how to get to the Emperor of Fire and Iron's location, how to beat it, its weakness, and its boss drops here!

Emperor of Fire and Iron Location

Located in the Belleau Region's Underwater Cave

The Emperor of Fire and Iron is found in the Belleau Region of Fontaine. You have to dive underwater to get to this boss' location.

Fontaine Underwater Map Guide

How to Get to the Emperor of Fire and Iron Entrance

Activate the Statue of Seven to Dive

Genshin - Statue of Seven
Before heading to the boss location, activate the Statue of Seven in Fontaine to gain the Fontaine's Blessing, which will allow you to dive.

Underwater Combat and Exploration Guide

Head South of Elton Trench

After activating the Statue of Seven, the Boss Icon will appear on the map. You can get to that place by taking the boat on Romaritime Harbor or by using the teleport waypoint.

Enter the Underwater Tunnel and Follow the Path to the End

Dive beneath water and look for the large tunnel opening next to the Fontemer Aberrants. Simply enter and follow the tunnel path within until you reach the Emperor's lair.

Activate the Teleport Waypoint

Make sure you activate the teleport waypoint inside so you can quickly travel to the boss location. Beware of the boiling water in some parts of the cave that can lower your HP, similar to the Balethunder in Inazuma.

How to Beat the Emperor of Fire and Iron Boss

Take down the Pyro Shield from its Horns

The Emperor of Fire and Iron boss' weakpoints are its twin horns, imbued with Pyro energy. When the horns are closer to the ground, use Elemental Reactions, preferrably with Hydro, to destroy the shield and slow its attacks!

List of All Hydro Characters

Best Teams to Defeat the Emperor of Fire and Iron

Recommended Team Composition for the Giant Crab Boss

Ayato Vape Team
Ayato Image Ayato Kokomi Image Kokomi Kazuha Image Kazuha Xiangling Image Xiangling

Ayato is the best Hydro DPS against the Emperor of Fire and Iron! Kokomi and Kazuha can provide additional support in terms of destroying the enemy's Pyro shield. It's also best to pick characters you can spam attack with once the Emperor is stunned.

Bloom and Hyperbloom Team

Bloom Team
Nahida Image Nahida Kokomi Image Kokomi Xingqiu Image Xingqiu Baizhu Image Baizhu
Hyperbloom Team
Alhaitham Image Alhaitham Nahida Image Nahida Xingqiu Image Xingqiu Raiden Image Raiden

You can also use Bloom or Hyperbloom teams against the Emperor of Fire and Iron! Use Hydro and Electro to break its horns and proceed to deal maximum damage with Elemental Reactions.

Best Free-to-Play Team

Free to Play Team
Kaeya Image Kaeya Traveler (Hydro) Image Traveler (Hydro) Lisa Image Lisa Barbara Image Barbara

Best Characters by Role

Main DPS
Genshin - Alhaitham ImageGenshin - Ayato ImageGenshin - Beidou ImageGenshin - Cyno ImageGenshin - Keqing ImageGenshin - Nilou ImageGenshin - Tartaglia ImageGenshin - Yae Miko Image
Sub DPS
Genshin - Fischl ImageGenshin - Kazuha ImageGenshin - Mona ImageGenshin - Nahida ImageGenshin - Raiden ImageGenshin - Xingqiu ImageGenshin - Yelan Image
Support
Genshin - Barbara ImageGenshin - Diona ImageGenshin - Kokomi ImageGenshin - Layla ImageGenshin - Shinobu ImageGenshin - Traveler (Hydro) ImageGenshin - Yaoyao ImageGenshin - Zhongli Image

Best Elements to Beat the Emperor of Fire and Iron

Recommended Elements
Electro ImageHydro Image

The Emperor of Fire and Iron is weak to Hydro the most, followed by Electro. You can also get rid of his Pyro shield by using Hydro and Electro to trigger Vaporize and Overloaded reactions!

Elemental Reactions Explained

Emperor of Fire and Iron Attack Patterns

Volcano Volley

The Emperor of Fire and Iron digs its feet into the ground and launches a volley of fireballs from the volcano-like cannon on its back. This attack deals Pyro DMG in a small AoE that can easily be avoided.

Lava Claw Attack

The Emperor of Fire and Iron will coat its larger claw with lava and strike the ground, causing lava to overflow in a straight line and dealing Pyro DMG to everything in its path.

Jump and Smash

The Emperor of Fire and Iron jumps into the air and crashes to the ground in a small AoE marked by a red circle on the ground just before it lands.

Lava Floor Attack

The Emperor burrows into the ground until only its top half and horns are visible. It will charge up and release a massive lava flow, dealing Pyro DMG to the entire arena!

You can avoid this by standing at the edges of the arena and wait for the ground to return to normal.

Emperor of Fire and Iron Item Drops

All Emperor of Fire and Iron Item Drops

Drop Level
Lv. 75+
Lv. 60+
Lv. 40+
Any Lv.
Lv. 30+

Emperor of Fire and Iron Artifact Drops

Artifact Set Drops
Adventurer Adventurer Berserker Berserker Instructor Instructor
Gladiator Gladiator's Finale Wanderer Wanderer's Troupe Prayers for Illumination Prayers for Illumination

Used to Ascend Lyney

Character Element Weapon
Lyney Lyney (5★)
Gaming Gaming (4★)

You can use the Emperor of Fire and Iron's item drop to ascend Gaming and Lyney's character level! To reach the final ascension level, each character requires a total of 46 Emperor's Resolution.

New and Upcoming Playable Characters

Emperor of Fire and Iron Information

Version 4.0 Overworld Boss

Genshin Impact - The Emperor of Fire and Iron

A Mystical Beast in Fontaine

The Emperor of Fire and Iron is one of two new bosses revealed during the 4.0 livestream.

The Emperor of Fire and Iron is an armored crab and an ancient ruler of the other Fontemer Aberrants living in caves in Fontaine, marking it as the ultimate form of the sea creatures.

4.0 Livestream Summary

Emperor of Fire and Iron Released in Version 4.0

Genshin Impact Version 4.0
Genshin - Version 4.0
Release Date August 16, 2023

Emperor of Fire and Iron was released on August 16, 2023 in Version 4.0, along with other contents!

Version 4.0 Release Date and Patch Notes

Genshin Impact Related Guides

All Boss Fight Guides

Genshin Impact - Bosses
List of Bosses

Field Bosses

Geo HypostasisGeo Hypostasis Anemo HypostasisAnemo Hypostasis Electro HypostasisElectro Hypostasis
Cryo RegisvineCryo Regisvine Pyro RegisvinePyro Regisvine OceanidOceanid
Primo GeovishapPrimo Geovishap Cryo HypostasisCryo Hypostasis Maguu KenkiMaguu Kenki
Perpetual Mechanical ArrayPerpetual Mechanical Array Pyro HypostasisPyro Hypostasis Hydro HypostasisHydro Hypostasis
Thunder ManifestationThunder Manifestation Golden WolflordGolden Wolflord Bathysmal Vishap HerdBathysmal Vishap Herd
Ruin SerpentRuin Serpent Jadeplume TerrorshroomJadeplume Terrorshroom Electro RegisvineElectro Regisvine
Aeonblight DrakeAeonblight Drake Algorithm of Semi-Intransient Matrix of Overseer NetworkAlgorithm of Semi-Intransient Matrix of Overseer Network Dendro HypostasisDendro Hypostasis
Setekh WenutSetekh Wenut Iniquitous BaptistIniquitous Baptist Icewind SuiteIcewind Suite
Emperor of Fire and IronEmperor of Fire and Iron Experimental Field GeneratorExperimental Field Generator Millennial Pearl SeahorseMillennial Pearl Seahorse
Hydro TulpaHydro Tulpa Solitary SuanniSolitary Suanni Legatus GolemLegatus Golem

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