Thunder Rune Ingredient: This small, dark blue crystal emits a low, rumbling sound like distant thunder and has a faint electrical charge. When used as an ingredient in a rune or magical spell, it can imbue the resulting effect with the power of thunderous energy.

To obtain a Thunder Rune Ingredient, adventurers must venture into environments associated with storms or powerful natural forces, such as mountain peaks or open plains. The crystals are found in areas where the power of thunder and lightning is strong, and require a steady hand to extract without being injured by the electrical charge.

When used in a rune or magical spell, the Thunder Rune Ingredient can add a thunder-based effect to the resulting magic. For example, a weapon imbued with a Thunder Rune Ingredient might deal additional thunder damage to its targets, while a spell imbued with the ingredient might create a deafening explosion of sound that damages nearby creatures.

While powerful, the Thunder Rune Ingredient is not without its risks. Overuse of thunder-based magic can cause unintended side effects, such as attracting lightning strikes or causing disorientation and deafness in nearby creatures. Additionally, the powerful electrical charge of the ingredient can cause electrical shocks or other related injuries if handled improperly.