What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Genshin Impact

Why Is There a Giant Hot Spring Underground? Stage 4 Guide

Add to Watchlist

◆ New: Tier List Maker and Community Tier List Contest!
◆ Hot: 6.2 Luna 3, Luna 3 Maintenance, Luna 3 Codes
◆ Featured: Durin, Jahoda, Venti, Varesa, Xilonen
Hexerei: Razor, Sucrose, Klee, Albedo, Mona, Fischl
◆ Events: To Temper Thyself Season 2

Genshin Impact - On the Trail of Behemoths Stage 4

Why Is There a Giant Hot Spring Underground? is the 4th stage of the On the Trail of Behemoths combat event in Genshin Impact 5.3. See the best teams, best strategies and special topics to obtain a Gold 2-star rating, and details about this stage here!

On the Trail of Behemoths Guides
Genshin - Trail of Behemoths Stage 1 Stage 1 Genshin - Trail of Behemoths Stage 2 Stage 2 Genshin - Trail of Behemoths Stage 3 Stage 3 Genshin - Trail of Behemoths Stage 4 Stage 4

Best Teams in Stage 4

Hard and Fearless Difficulty

Stage 4 Teams
Genshin - Neuvillette Icon Neuvillette Genshin - Furina Icon Furina Genshin - Kazuha Icon Kazuha Genshin - Xilonen Icon Xilonen
Genshin - Nilou Icon Nilou Genshin - Kokomi Icon Kokomi Genshin - Nahida Icon Nahida Genshin - Collei Icon Collei
Genshin - Mualani Icon Mualani Genshin - Furina Icon Furina Genshin - Xilonen Icon Xilonen Genshin - Mavuika Icon Mavuika
Genshin - Mona Icon Mona Genshin - Xingqiu Icon Xingqiu Genshin - Fischl Icon Fischl Genshin - Bennett Icon Bennett

Running Hydro-centric teams against the Tyrant of Fire and Iron is your best bet here due to its hefty Pyro Shield and damage resistances.

The teams remain the same throughout both Hard and Fearless Difficulty due to the boss having more or less the same mechanics.

How to Beat Hard Difficulty

Brute Force With Hydro

Unlike Fearless mode, the Tyrant has significantly less HP and can be brute-forced with Hydro to damage it or to remove the shield and instantly kill it afterwards.

It is recommended to bring a Shielder for a smoother clear time with less interruptions.

How to Beat Fearless Difficulty

Focus Down The Shield

In Fearless Difficulty, breaking the Tyrant's shield becomes more of a priority than an option as it boasts higher resistances and HP, and deals more damage.

Bring two Hydro units and cycle between their elemental applications in order to shred down the Tyrant's Pyro Shield effectively.

Avoid Molten Throne Areas

Due to the presence of both the 2nd and 3rd Special Topics, make sure that you avoid the Molten Throne areas that the Tyrant spawns if possible, as they do large amounts of DoT damage to the active character.

Pick the Right Special Topics

Genshin - Recommended Special Topics

If you are choosing Special Topics in order to gain the 2-star rating, then opt to pick the 2nd and 3rd ones that creates Molten Throne areas and increases the Tyrant's ATK.

We opt for the 2nd Special Topic over the other two due to the 1st one making its already-tough shield harder to break and the 4th one adding an entirely different mechanic to the Tyrant fight.

Food Items are Usable

Genshin - Food Buffs

It should be worth noting that you can use food buffs in this fight in order to revive units or increase your damage.

Use this as a trump card for when your pivotal units get hit by a stray attack and go down, or to up your damage so you can defeat the opponent quicker.

Co-Op is an Option

One of the main features of this event that this is available to do in Co-Op, allowing you to team up with friends in order to tackle the challenges.

Genshin Co-Op Boards
Genshin - Friend Request BoardFriend Request Board Genshin - Co-Op BoardCo-Op Board Genshin - Supporting castBoardSupporting Cast Board

Stage 4 Event Information

Part of the On the Trail of Behemoths Combat Event

Genshin Impact - On the Trail of Behemoths Event

Why Is There a Giant Hot Spring Underground? is the 4th stage for the On the Trail of Behemoths event, a combat event that sees players challenging powerful boss enemies at varying levels and degrees in order to obtain rewards.

On the Trail of Behemoths Event Guide

Enemy Information

Tyrant of Fire and Iron

No. of Special Topics Opponent Level Opponent HP
0 95 100%
1 95 200%
2 95 325%
3 105 475%
4 105 650%

Special Topics

Stage 4 Special Topics
Research Topic: Environment Enhancement Experiment
The Tyrant of Fire and Iron's twin molten horns will be harder to break, and the Physical and All Elemental RES that they provide it with will be further increased.
Research Topic: Molten Throne
After the Tyrant of Fire and Iron performs a leaping strike, the area hit by the attack will become a Molten Throne. After the Tyrant of Fire and Iron has been within the Molten Throne area for a period of time, it will start to constantly regenerate HP.
Research Topic: Monster Threat Assessment
Increases the Tyrant of Fire and Iron's ATK by 120%.
Research Topic: Blazing Coronation
During the challenge, the Tyrant of Fire and Iron will use its twin molten horns to absorb the power of lava and charge up Blazing Coronation. Aside from downing all characters currently on the field, Blazing Coronation will also repair the Tyrant of Fire and Iron's twin molten horns. When all lava crystals on the field are destroyed, Blazing Coronation's charging will be interrupted and the Tyrant of Fire and Iron's twin molten horns will suffer backlash DMG instead.

Stage 4 Rewards

Total Why Is There a Giant Hot Spring Underground? Stage Rewards

Objective Rewards
Obtain a Bronze 1-star rating in the challenge
Obtain a Silver 1-star rating in the challenge
Obtain a Gold 1-star rating in the challenge
Genshin Impact - Mora Image Mora x20000
Obtain a Gold 2-star rating in the challenge
Genshin Impact - Mora Image Mora x20000

Genshin Impact Related Guides

Genshin Impact - On the Trail of Behemoths

On the Trail of Behemoths Event Guide

On the Trail of Behemoths Stage Guides

On the Trail of Behemoths Stage Guides
Genshin - Trail of Behemoths Stage 1 1 - Why Do the Automata Stand Tall in the Ruins? Genshin - Trail of Behemoths Stage 2 2 - Why Did the Ancients Craft Stone Statues?
Genshin - Trail of Behemoths Stage 3 3 - Why Does the Water Have a Will of Its Own? Genshin - Trail of Behemoths Stage 4 4 - Why Is There a Giant Hot Spring Underground?

Other Events and Schedule

Genshin Impact - List of Events

List of Events

    Please participate in our site
    improvement survey
    12/2025
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey

    All rights reserved

    Guide Index