"This rare butterfly only shows itself when it rains. The organs in its body produce an insulating compound. When made into an elixir, it offers electrical resistance."
Hyrule Compendium

The Thunderwing Butterfly is an item from The Legend of Zelda: Breath of the Wild. Link can cook with it and monster parts to create an Electro Elixir which increases Link's resistance to lightning and electricity. They tend to appear in most areas more commonly went it rains including thunderstorms though it is apparently insulated from lightning and static electricity in the atmosphere by an insulating compound produced by organs in its body. Beedle sells them at certain stables.

See also

Community content is available under CC-BY-SA unless otherwise noted.