- "A magical sword forged and refined by lightning from the Hyrule Hills. When the blade shines with a golden light, it will electrocute enemies struck by it."
- — Hyrule Compendium
The Thunderblade is an item from The Legend of Zelda: Breath of the Wild. It is an elemental sword with an attack rating of 22 filled with thunder power shocking and causing electric damage to enemies. Like Shock Arrows, its power and electricity is boosted during rainy weather.
One spawns in a pedestal on the second floor of the Observation Room of Hyrule Castle. One can be obtained by defeating the Stalnox from Hickaly Woods which respawns with the Stalnox every Blood Moon. The blade has a wide sheath wrapped in cloth which is presumably insulated to protect the wielder from being shocked by the magically electrified blade when sheathed. As with the other elemental weapons in Breath of the Wild it's high durability and magical effects make it a good backup to the Master Sword during it's recharge period.