Stalmaster

The Stalmaster is a type of Stalfos that serves as a mini-boss in The Legend of Zelda: Skyward Sword as well as an elite captain in every game of the Hyrule Warriors series. They are four-armed armored Stalfos warriors that serves as elite soldiers amongst other monsters.

The Legend of Zelda: Skyward Sword
The Stalmaster is first encountered in the Ancient Cistern where it serves as the guardian of the Whip as well as the mini-boss of the dungeon. Another Stalmaster is later fought once again in the Sky Keep. At the beginning of the combat, the Stalmaster is only using two arms and behave like a regular Stalfos. Link must slash in the directions that are not protected by the Stalmaster's blades. After taking enough damage, the Stalmaster will pull out a third sword and an axe. It will then use the three swords to block three directions and uses Its axe alongside the three sword in a four hit attack. The Stalmaster fought in the Sky Keep is aided by Cursed Bokoblin in battle.

Hyrule Warriors series
The Stalmaster is featured as an elite captain in Hyrule Warriors, Hyrule Warriors Legends, and Hyrule Warriors: Definitive Edition. They have similar paterns to the Darknut in this game and using the Boomerang on them while they charge, their weak point will be exposed. In Legends and Definitive Edition, Dark Stalmasters also appear as Sealed Troops on the final mission of the Scenario, "Liberation of the Triforce".

Trivia

 * When the Stalmaster's helmet falls off, it is revealed to have a third eye. This feature, in addition to its four arms, may be a reference to Hindu deities such as Shiva and Kali. The Ancient Cistern in which the Stalmaster first appears in makes many references to Indian religious themes.