Thundering Devices is the Fungus Mechanicus Day 4 stage in Genshin Impact. See the recommended Fungi team, list of Mechanici enemies, and how to defeat all the Mechanici under 240 seconds here!

Fungus Mechanicus Guides
Ordered Trial	Flame of Samadhi
Icy Clarity	Waterbag Barrier
Thundering Devices	One in a Thousand
Storm-Proof... Not	Caution, Madness Ahead

How to Beat Thundering Devices

Recommended Team for Day 4

Dendro Reactive Team

Dendro Reactive Team
Magishroom	Bongo-Head	Stormsage	Any

This Dendro Reactive Team team focuses on Magishroom's Dendro attacks and Bongo-Head's and Stormsage's Hydro and Electro, to constantly trigger Hyperbloom, and Quicken/Spread. Both reactions are high in damage, plus the Li'l Fungi needed for this can provide heals/utility to the team.

You can also trigger Burning/Burgeon using the nearest Mystic Blaze, but since its coverage is limited and is immobile, you can only apply such reaction on the first Thundering March and the second Windblade

The fourth member of this team is entirely up to you; depending on how your style for this stage is going to be. A safer, more well-rounded option is to bring Twirly-Whirly to trigger Swirl without removing Electro/Hydro aura, or Rocksteady, for the shields.

How to Defeat Thundering Devices

Prioritize Mechanici by Level of Threat

Use the Mystic Blaze to immediately trigger Burning/Burgeon on the first Thundering March, then immediately go for the first Windblade on the left side of the board, afterwards. Take note that Thunderflash is the biggest threat among the normal Mechanici in this stage, so it's important to go after them first.

As for the enhanced ones, we suggest taking down Water Mirror first because of its pesky Hydro shields!

Do not Defeat the Second Windblade

Windblades are mechanici that spawn on the more outlying side of the board. First one spawns on the left side, while the second one is just across it, on the right side.

For the second Windblade, we suggest holding-off the attacks against it, until you've defeated the Thunderflash that spawns on the upper-left side after the first Windblade goes out.

Targeting the second Windblade otherwise, takes your Fungi away from the center, where most of the incoming Mechanici will spawn, therefore losing valuable time in defeating the enemies within 240 seconds!

Do Not Spam Your Abilities

Spamming your abilities in Thundering Devices can be normal at first, especially with the high-damage output of the Mechanici in this stage. However, we strongly recommend saving your abilities only when you needed, especially your Heals/Shields!

The most viable situation in using your Heals/Shields is when an Enhanced Mechanicus is around, most specifically, Thundering March. Prematurely using your abilities without any of the enchanced mechanicus present, could mean losing some of your Fungi, and by extension, losing the stage.

Thundering Devices Challenge Enemies and Details

All Mechanici in Thundering Devices

Thundering Devices First Phase

Mechanici in Thundering Devices First Phase
Thunderflash x3		Windblade x4		Mystic Blaze x1 (Permanent)
Thundering March x2			Water Mirror x1

Thundering Devices Second Phase

Mechanici in Thundering Devices Second Phase
Thunderflash x2		Windblade x1		Mystic Blaze x2 (Permanent)
Thundering March x1			Water Mirror x1

Thundering Devices Rewards

All Rewards for Fungus Mechanicus Day 4

Objectives	Rewards
Defeat all Mechanici	Primogem x50 Iron Talisman of the Forest Dew x3
No more than 2 Lil' Fungi retreated	Mora x20,000 Hero's Wit x2
Complete challenge within 240s	Mora x20,000 Mystic Enhancement Ore x4

Thundering Devices Day 4 Information

Part of Fungus Mechanicus

Thundering Devices is the fourth challenge of the Fungus Mechanicus Event. It's also the debut stage of the first friendly and permanent mechanicus, Mystic Blaze!

Fungus Mechanicus Event Guide

Genshin Impact Related Guides

Fungus Mechanicus Event Guide

Fungus Mechanicus Event Stages

Fungus Mechanicus Stages
Ordered Trial	Flame of Samadhi
Icy Clarity	Waterbag Barrier
Thundering Devices	One in a Thousand
Storm-Proof... Not	Caution, Madness Ahead

Fungus Mechanicus Quest

Old Friends, New Game Quest Guide

Other Fungus Mechanicus Guides

Fungus Mechanicus Guides
Fungi Locations and Reactions	Temporary Residence in Port Ormos

All Genshin Impact Events

List of Events