One of the most crucial parts of Monster Hunter Wilds and its gameplay is collecting materials from the monsters that you decide to hunt. While every monster can have their own version of various types of materials, some can be a little more specific in terms of where their source is from.
These specific items can relate to a unique trait of a monster that others may not have. For example, a monster that is capable of harnessing lightning, like Rey Dau, will not drop certain materials that can be found in fire-based monsters, like Nu Udra. These items come in multiple forms, with one specifically being called a Thunder Sac. If you’re struggling to find Thunder Sac drops in Monster Hunter Wilds, this guide is here to help.

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How to Get Thunder Sacs in Monster Hunter Wilds


A Thunder Sac is an item that is required if players are looking to craft certain pieces of gear. Its source comes from the Guardian Fulgur Anjanath, a returning monster that falls under a new category called Constructs as opposed to its Monster Hunter World: Iceborne iteration. This monster can be hunted in The Ruins of Wyveria after discovering it in the endgame once players reach high rank, specifically HR 8. When hunting this monster in the open world, it tends to be found around Zones 9-14. If you see it in the wild and wish to hunt it another time, you can interact with its icon and spend Guild Points to save it to your Investigations quest list. There are also optional hunt quests that feature this monster, along with the endgame mission called “Thundering Flowers,” which can be replayed.
In Monster Hunter Wilds, there are specific ways for players to obtain materials during any hunt, with some having to be executed properly for them to count. They include:
- Quest rewards upon a successful hunt
- Breaking parts of a monster during the hunt
- Destroying wounds that appear on the monster’s body during a fight
- Carving the monster once it is successfully hunted
Competing each of these actions will reward players with more items. However, a Thunder Sac can only be obtained from quest rewards once the hunt is completed. The other methods do still grant materials from Guardian Fulgur Anjanath, but none of them include this specific item in their individual loot pools. Its drop rate from quest rewards sits at 18 percent for each successful hunt, with the odds of obtaining them going down if a player faints during the hunt, resulting in a decrease in quest rewards overall. Obtaining multiple Thunder Sacs per hunt is possible, and players can identify the item by its pouch icon, similar to the Lifepowder item, with a yellow color. To further raise the odds of a Thunder Sac dropping, players can use Lucky Vouchers before departing on the hunt to increase how many quest rewards are given. Once a Thunder Sac is obtained, it can then be used to craft certain pieces of gear, including Guardian Fulgur Anjanath’s weapons and armor.

- Released
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February 28, 2025
- ESRB
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T For Teen // Violence, Blood, Crude Humor
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