The Slayer

He went by many names across his long career, but one he took a liking to was "The Slayer".

The Slayer was an individual feared across the entire universe. When his name started going around, the most fearless of dictators ran at the sight of him. Saying his name aloud was said to summon him to you, therefore most places restricted it. At first, he was a myth, "the pawn of the Council", but then, people started dying like it was nothing. Every other day, you would hear someone prestigious had been murdered. Quickly, the Slayer made a name for himself, and the entire universe feared him, not the Council. But billions of years after his torment started, as suddenly as it started, it ended. He was gone, the universe was free.

Gear
The Slayer wore black armor, weathered and broken, he had a cape down to his ankles, and wore a Gladiator helmet, except it covered the entire face. He wielded a void-energy infused (he was immune) blade, as large as him, and incredibly heavy, yet he swung it with no problem.

Tendrils
The tendrils are thin, sharp void-black tendrils that the Slayer can call to attack anything he commands them to.

The tendrils come out from under his plated armour.

Blackfire
The Slayer can summon an aggressive, black and yellow fire which burns anything it touches, except the user.

A second of exposure to blackfire is enough to burn through the average human's skin, and char the bone.

The Slayer can also cover his weapons in blackfire, for extra damage.

Immunity
He has immunity to all common poisons, most illnesses, void energy, and cannot be mind controlled nor can anyone access his mind.