Domain Expansions in Jujutsu Kaisen 

Pinnacle of Power 

In the Jujutsu Kiasen manga, domain expansions are considered the pinnacle of a scorerer's or cursed spirit's powers.

About the abilities 

The user's skills are greatly enhanced in a confined space created by these tactics. 

Absurdness

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The bounds of what is "normal" in the world of coursed energy in Jujutsu Kaisen are pushed by these domain expansions. 

Jogo's Coffin of the Iron Mountain 

By using this method, an enclosed area can be produced that resembles a volcanic environment, complete with molten lava, searing heat, and rocky terrain.

 Megumi Fushiguro's Chimera Shadow Garden 

By filling the area with a massive amount of black liquid, this technique creates a strong, dark realm where he may summon and manipulate many Shikigami.

Higuruma's Deadly Sentences 

By using this method, a courtroom scenario is produced where Shikigamis, Judgeman, and Higuruma play the roles of prosecutors throughout the domain's trial.

Smallpox Deity's Graveyard Domain 

The Smallpox Deity can capture its foe in a vertical coffin within this realm and infect them with the terrible smallpox virus.  

Dagon's Horizon of the Captivating Skandha 

With this method, a vast ocean surrounds the location, allowing Dagon to control the water and call forth terrifying sea animals. 

Hakari's Idle Death Gamble 

This manoeuvre places the opponent in an environment resembling a casino where they must take part in a high-stakes game of chance. 

Mahito's Self-Embodiment of Perfection 

This technique creates a space where Mahito can manpulate his own soul, allowing him to alter his body in grotesque and horrifying ways.