What are the rewards for completing the "The Thunder Helm" side quest in The Legend of Zelda: Breath of the Wild?

The "The Thunder Helm" side quest in The Legend of Zelda: Breath of the Wild is one of the more involved quests in the game, requiring players to complete a series of tasks for the people of Gerudo Town. The quest is given by Riju, the chief of the Gerudo, after you have completed the Divine Beast Vah Naboris main quest. The reward for completing this quest is the Thunder Helm, a powerful piece of headgear that grants immunity to lightning strikes, making it extremely useful in areas with frequent thunderstorms or when facing enemies that use electric attacks.

To start the quest, you must first speak to Riju in Gerudo Town. She will explain that the Thunder Helm, a sacred heirloom of the Gerudo, has been stolen by the Yiga Clan. However, before she can lend it to you, she asks that you help the people of Gerudo Town by completing four side quests. These quests are given by different NPCs in the town and involve solving various problems they are facing. The four quests you need to complete are "The Mystery Polluter," "The Search for Barta," "Medicinal Molduga," and "The Eighth Heroine."

The first quest, "The Mystery Polluter," is given by Dalia, who is concerned about the water supply in Gerudo Town being polluted. To solve this, you need to find the source of the pollution, which turns out to be a group of sand seals being fed hydromelons by a man named Bozai. You can either talk to Bozai and convince him to stop feeding the sand seals or simply steal the hydromelons from him at night. Once the pollution stops, return to Dalia to complete the quest.

The second quest, "The Search for Barta," is given by Liana, who is worried about her friend Barta, who has gone missing. Barta can be found in the Kara Kara Bazaar, where she is hiding in a barrel. Speak to her to convince her to return to Gerudo Town, then report back to Liana to complete the quest.

The third quest, "Medicinal Molduga," is given by Malena, who is suffering from an illness and needs Molduga guts to make medicine. Moldugas are large, sand-dwelling creatures found in the Gerudo Desert. To defeat a Molduga, you need to lure it out of the sand by throwing a bomb or other noisy item, then attack it when it surfaces. Once you have obtained Molduga guts, return to Malena to complete the quest.

The fourth quest, "The Eighth Heroine," is given by Rotana, who is researching the legend of the Seven Heroines and believes there is an eighth. To complete this quest, you need to find the statue of the Eighth Heroine, which is located in the Gerudo Highlands. The statue is hidden in a cave, and you will need to solve a small puzzle involving orbs to access it. Once you have found the statue, return to Rotana to complete the quest.

After completing all four quests, return to Riju, and she will reward you with the Thunder Helm. This helm is particularly useful in areas with frequent lightning storms, such as the Faron region, or when facing enemies like Electric Wizzrobes or Lizalfos that use electric attacks. It also provides a small amount of defense, making it a valuable piece of equipment.

One important tip is to prepare adequately before attempting to defeat a Molduga, as they can be challenging enemies. Make sure you have plenty of weapons, shields, and healing items. Additionally, when searching for the Eighth Heroine, it can be helpful to use the Sheikah Sensor to locate the hidden cave.

A common mistake is to overlook the importance of completing all four quests before returning to Riju. Make sure you have finished each one to avoid having to backtrack. Another mistake is not being prepared for the Molduga fight, which can lead to unnecessary deaths and resource loss.

Advanced techniques include using Urbosa's Fury, a power gained from completing the Divine Beast Vah Naboris, to deal significant damage to Moldugas. Additionally, using stealth to avoid detection by the Yiga Clan while completing the quests can save time and resources.

In summary, completing "The Thunder Helm" side quest involves helping the people of Gerudo Town by solving their problems, defeating a Molduga, and uncovering the mystery of the Eighth Heroine. The reward, the Thunder Helm, is a powerful and useful item that provides immunity to lightning and a small amount of defense. Proper preparation, careful exploration, and strategic combat are key to successfully completing this quest.