Mazaal

This boss is the final fight of the Fortress of Winds in The Minish Cap, and is very similar to Gohdan from The Wind Waker. Instead of earning the Wind Element from his defeat, you get the Orcarina of Winds.

Quote from Mazaal figurine on The Minish Cap: "Constructed by the Wind Tribe to repel intruders, this sturdy machine cannot be destroyed by an external force"