How to Get Warm Back-Shell in Genshin Impact

By Ambar Jimenez | 2025-09-28 20:38:47

Forging the Flames: Your Definitive Guide to the Warm Back-Shell

Welcome, adventurers, to the fiery lands of Natlan! In this newest region of Genshin Impact, a world of scorching volcanoes and powerful, primal creatures awaits. To survive and thrive in this elemental landscape, you'll need to power up your weapons with a crucial new item: the Warm Back-Shell. This 3-star character development item, introduced in Version 5.5, is an essential material for ascending some of Natlan's most potent weapons. This guide will serve as your comprehensive resource, detailing where to find the Warm Back-Shell, how to farm it effectively, and which weapons will benefit most from its fiery essence.

What Exactly is the Warm Back-Shell?

Beyond its function as a crafting material, the Warm Back-Shell is a piece of Natlan’s unique and vibrant ecosystem. The item’s description reveals its origins: "A portion of shell removed from a Furnace Shell Mountain Weasel's back." These creatures are said to store a substance called Phlogiston in their shells, allowing them to blaze fiery trails across the Sacred Mountain. This lore hints at the very nature of Natlan—a place where life has adapted to and harnessed the power of fire.As a Weapon Ascension Material, the Warm Back-Shell is a must-have for any player looking to optimize their gear. It’s used to break the level caps of certain weapons, unlocking enhanced stats and powerful passive effects that will give you an edge in combat against Natlan’s fierce enemies.

The Hunt: How to Get Your Hands on the Warm Back-Shell

There are a few ways to acquire the Warm Back-Shell, giving you flexibility in your farming strategy.

1. The Primary Source: Farming Furnace Shell Mountain Weasels

The most direct way to get Warm Back-Shells is by defeating the creatures they come from: the Furnace Shell Mountain Weasels.3 These fiery weasels are a new elite enemy found exclusively in the Atlocan region of Natlan.

  • Location: Atlocan region, Natlan. You'll find them roaming the volcanic plains and mountains.
  • Requirements: You must be at least Adventure Rank 40 to get these materials as drops.
  • The Challenge: These weasels are known for their explosive mobility and high elemental resistance, especially against Pyro. Be prepared for a fast-pacedbattle. Bring characters with strong AoE (Area of Effect) abilities orthose who can counter Pyro, such as Hydro or Electro characters, to make the fight easier.

When you defeat them, they can drop a family of materials: the 2-star Cold-Cracked Shellshard, the 3-star Warm Back-Shell, and the 4-star Blazing Prismshell.

2. The Easy Way: The Stardust Exchange

For players who have a surplus of Stardust from their wishes, the Paimon's Bargains shop is a great alternative. The Warm Back-Shell is available for purchase periodically in the Stardust Exchange. This is a quick and efficient way to get the materials you need, especially if you're in a hurry to ascend a new weapon.

3. The Alchemist’s Touch: Crafting

If you've been farming the weasels but only have a pile of Cold-CrackedShellshards, don't worry! You can use the in-game crafting system toupgrade your materials. Simply visit any Alchemy Bench and use the following recipe:

  • Crafting Recipe: Combine 3 Cold-Cracked Shellshards to craft 1 Warm Back-Shell.

This is a great way to ensure that every single farming run contributes to your goal.

Forging Your Arsenal: Weapons That Require Warm Back-Shell

Several new weapons introduced in Version 5.5 require the Warm Back-Shell forascension. These weapons are not just powerful but also have uniqueeffects that are perfect for Natlan's challenging content.

  • Fractured Halo: A new 5-star sword with an elegant design and powerful elementalamplification abilities. It's a top-tier weapon for any character thatrelies on elemental damage.
  • Vivid Notions: A 4-star catalyst that scales with burst damage. It's an excellentchoice for support or sub-DPS characters who use their Elemental Burststo deal massive damage.
  • Flame-Forged Insight: A new 4-star claymore with passive effects tied to kinetic energy andvolcanic themes, making it ideal for characters with a fiery andaggressive playstyle.
  • Sequence of Solitude: A new 4-star polearm that, like the others, features unique abilities that synergize with Natlan's new mechanics.

By gathering the Warm Back-Shell, you are directly investing in the powerof your arsenal and preparing your team for the adventures that lieahead.

A Humanized Touch: The Journey to Power

Farming in Genshin Impact is more than just a chore; it’s a part of thejourney. The first time you face a Furnace Shell Mountain Weasel andfeel the heat of its attacks, you'll understand why its shell is sovaluable. The satisfaction of finally defeating it and getting thatcoveted Warm Back-Shell is a reward in itself. It's a small victory that contributes to a larger goal: to make your favorite characters andweapons as strong as they can be. So, prepare your team, embrace theheat of Natlan, and let the forging begin.

Tags: miHoYo game, Open-world RPG, Teyvat, Genshin Impact characters, Genshin Impact tips, Genshin Impact updates, Genshin Imp
Platform(s): PlayStation4 PS4, Nintendo Switch, iOS, PC, Android
Genre(s): Action role-playing
Developer(s): miHoYo.com
Publisher(s): miHoYo
Engine: Unity
Release date: September 28, 2020
Mode: Single-player, Multiplayer
Age rating (PEGI): 12+
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