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Elden Ring: Demi-Human Swordmaster Onze (Belurat Gaol) Boss Fight (SOTE)

Published: January 6, 2026 at 4:41:38 PM UTC

Demi-Human Swordmaster Onze is in the lowest tier of bosses in Elden Ring, Field Bosses, and is the end boss of the Belurat Gaol dungeon in the Land of Shadow. It is an optional boss in the sense that it is not required to defeat it in order to progress the main story of the Shadow of the Erdtree expansion.


As you probably know, bosses in Elden Ring are divided into three tiers. From lowest to highest: Field Bosses, Greater Enemy Bosses and finally Demigods and Legends.

Demi-Human Swordmaster Onze is in the lowest tier, Field Bosses, and is the end boss of the Belurat Gaol dungeon in the Land of Shadow. It is an optional boss in the sense that it is not required to defeat it in order to progress the main story of the Shadow of the Erdtree expansion.

This boss is small, but highly agile and hard-hitting. I actually found him a bit difficult to get in melee range of as he would constantly jump around, only to land behind me and stab me with something unpleasantly pointy.

Fortunately, two can play at that game and two did, namely my favorite sidekick Black Knife Tiche and myself. Even so, the boss moves around a lot and I would often miss my swings because he would be somewhere else by the time they landed. Or maybe it’s just because I suck at judging distance. No, I think I’ll go with the first explanation.

I thought it was fun to see a Swordmaster variety of the demi-human enemies. As far as I know, this variety does not exist in the base game and apart from the queens, demi-humans were overall fairly underwhelming enemies. These swordmasters add a bit of danger to demi-human groups. It’s not that I really like danger, but at least that gives me an excuse for running away.

And now for the usual boring details about my character. I play as a mostly Dexterity build. My melee weapons are the Hand of Malenia and the Uchigatana with Keen affinity. I was level 183 and Scadutree Blessing 4 when this video was recorded, which I think is reasonable for this boss. I’m always looking for the sweet spot where it’s not mind-numbing easy mode, but also not so difficult that I will be stuck on the same boss for hours ;-)

Fan art inspired by this boss fight

Anime-style illustration of the Tarnished in Black Knife armor dueling the smaller Demi-Human Swordmaster Onze with a glowing bluish sword amid flying sparks in a dark, rocky landscape.
Anime-style illustration of the Tarnished in Black Knife armor dueling the smaller Demi-Human Swordmaster Onze with a glowing bluish sword amid flying sparks in a dark, rocky landscape. Click or tap the image for more information.

Anime-style fan art of the Tarnished fighting Demi-Human Swordmaster Onze inside Belurat Gaol
Anime-style fan art of the Tarnished fighting Demi-Human Swordmaster Onze inside Belurat Gaol Click or tap the image for more information.

Anime-style scene of the Tarnished in Black Knife armor seen partly from behind, clashing blades with the smaller Demi-Human Swordmaster Onze wielding a bluish glowing sword inside the dark stone halls of Belurat Gaol, sparks flying.
Anime-style scene of the Tarnished in Black Knife armor seen partly from behind, clashing blades with the smaller Demi-Human Swordmaster Onze wielding a bluish glowing sword inside the dark stone halls of Belurat Gaol, sparks flying. Click or tap the image for more information.

Anime-style fan art showing the Tarnished fighting Demi-Human Swordmaster Onze in Belurat Gaol from an elevated isometric perspective
Anime-style fan art showing the Tarnished fighting Demi-Human Swordmaster Onze in Belurat Gaol from an elevated isometric perspective Click or tap the image for more information.

Semi-realistic fan art of the Tarnished fighting Demi-Human Swordmaster Onze inside Belurat Gaol
Semi-realistic fan art of the Tarnished fighting Demi-Human Swordmaster Onze inside Belurat Gaol Click or tap the image for more information.

Semi-realistic fan art of the Tarnished fighting Demi-Human Swordmaster Onze in a glowing cave
Semi-realistic fan art of the Tarnished fighting Demi-Human Swordmaster Onze in a glowing cave Click or tap the image for more information.

Anime-style fan art of the Tarnished in Black Knife armor seen partly from behind, clashing blades with the smaller Demi-Human Swordmaster Onze wielding a glowing bluish sword inside an eerie blue-lit cave, sparks bursting between them.
Anime-style fan art of the Tarnished in Black Knife armor seen partly from behind, clashing blades with the smaller Demi-Human Swordmaster Onze wielding a glowing bluish sword inside an eerie blue-lit cave, sparks bursting between them. Click or tap the image for more information.

Anime-style fan art viewed from an isometric angle showing the Tarnished in Black Knife armor clashing blades with the smaller Demi-Human Swordmaster Onze wielding a glowing bluish sword inside an eerie blue-lit cave, sparks bursting between them.
Anime-style fan art viewed from an isometric angle showing the Tarnished in Black Knife armor clashing blades with the smaller Demi-Human Swordmaster Onze wielding a glowing bluish sword inside an eerie blue-lit cave, sparks bursting between them. Click or tap the image for more information.

Anime-style fan art viewed from an isometric angle showing the Tarnished in Black Knife armor and the smaller Demi-Human Swordmaster Onze cautiously approaching each other with drawn blades inside an eerie blue-lit cave.
Anime-style fan art viewed from an isometric angle showing the Tarnished in Black Knife armor and the smaller Demi-Human Swordmaster Onze cautiously approaching each other with drawn blades inside an eerie blue-lit cave. Click or tap the image for more information.

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Mikkel Christensen

About the Author

Mikkel Christensen
Mikkel is the creator and owner of miklix.com. He has over 20 years experience as a professional computer programmer/software developer and is currently employed full-time for a large European IT corporation. When not blogging, he spends his spare time on a vast array of interests, hobbies, and activities, which may to some extent be reflected in the variety of topics covered on this website.