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Test of Will is a Shrine quest in The Legend of Zelda: Breath of the Wild. It is obtained from Bayge in northern Mount Nabooru, northeast of the Gerudo Canyon Stable. He, along with his 'Blood Brothers' Heehi and Kabetta challenge Link to a test of endurance, requiring him stand on a heated rock for a while without passing out. While on the second heated rock, Link is not allowed to wear heat-resistant gear and must suffer periodic damage from the heat, though food can be consumed to recover Heart Containers during the challenge or drink a Fireproof Elixir, which can outlast the second part of trial. Once it is completed, Joloo Nah Shrine emerges from the ground nearby.

Spoiler warning: Spoilers end here.