Summary
Ancient sorcerers are some of the most powerful individuals to exist in the world ofJJK. They are playing an incredibly important role in the Culling Game arc even now, and have done so over the past 100 or so chapters of the series.
When it comes to Ancient Sorcerers, fans already know that the vast majority of them are stronger than the modern sorcerers. As such, it has been quite a joy for fans to explore their incredible cursed techniques, some of which have been absolutely incredible.

9Explosive Flesh
User: Iori Hazenoki
Explosive Flesh is the cursed technique of Iori Hazenoki, and fans know that this technique allows him to use projectiles from his own body that can explode.
Thanks to the usage of RCT, this loss can be mitigated immediately after. However, this technique isn’t all that special if the user does not possess RCT.

8Contractual Recreation
User: Reggie Star
Known to be quite a unique cursed technique, Contractual Recreation simply lets the user, Reggie Star, to bring to life anything that is written on any receipts.
For instance, if a user buys something and has a receipt for it, the user can then recreate the object written on the receipt by using their cursed technique. This technique is very limited in terms of what it can actually do and also, at the same time, can also be only used in certain situations. It is by far one of the weakest cursed techniques that any ancient sorcerer possesses.

7Construction
User: Yorozu
Construction is quite an incredible ability that exists in the world ofJJK. As the name suggests, it allows the user to construct anything using their cursed energy, provided they have somewhat of an understanding of what they want to construct. Fans have seen Mai use this ability on many occasions, however, she was riddled with many obstacles, and her limit was constructing one bullet.
In the case of Yoruzu, she faced similar obstacles. However, she was able to overcome them eventually. She had managed to advance her first technique to a level where she could even utilize a domain expansion.

6Sky Manipulation
User: Takako Uro
Takako Uro’s Sky Manipulation is one of the strongest techniquesthat fans have seen in the Culling Game arc.This cursed technique allows her to manipulate the space around her as if it were a tangible material.
She can create spatial distortions using this technique in many ways. This ability was so strong that even Yuta decided to copy it when given the opportunity. It is by far one of the strongest techniques utilized by any ancient sorcerer in the Culling Game arc.

5Ice Formation
User: Uraume
Uraume, also known as the Frozen Star, is quite an incredible user of cursed energy. Her cursed technique, known as Ice Formation, allows her to supercool her cursed energy and, with it, anything in her surroundings, being able to produce ice at will.
This technique is incredibly dangerous and when it is used at its very peak, even the strongest of sorcerers will have trouble dealing with it. Uraume also possesses quite a decent hold over reverse cursed technique. Combining all her abilities, Uraume becomes a force to be reckoned with.

4Mythical Beast Amber
User: Hajime Kashimo
One of the most overpowered techniques that fanshave seen in the Culling Game arc, Mythical Beast Amber is the cursed technique of Kashimo. This technique transforms his body in a way that he can manifest any phenomenon that is created by electricity.
This is quite a dangerous ability that pushes him beyond human levels. When utilizing this technique, Kashimo becomes a superhuman and he gains enough strength to even push sakuna around in battle. It can only be used once, however.

3Brain Hopping
User: Kenjaku
Kenjaku, one of the strongest ancient sorcerers, possesses quite a lot of powerful abilities up his sleeve. Fans have seen him utilize some of the most dangerous powers that he has gained access to by inhabiting various bodies. However, his own cursed technique is related to brain hopping.
Simply put, Kenjaku can switch bodies as he exists as a brain himself. When he crawls inside a body as their brain, he is then able to utilize the body completely as if he were natural to it. Everything, from their memories, to their powers, then belongs to Kenjaku.

2Technique Extinguishment
User: Angel
Technique Extinguishment, as the name suggests,is a powerful cursed techniquethat belongs to Angel. This ancient sorcerer has the ability to extinguish any cursed technique she wishes with the power of technique extinguishment.
Utilizing Jacob’s Ladder, this power is boosted even further. Even Sukuna could have died had he not resorted to manipulating Angel. It remains to be one of the strongest cursed techniques to exist in the world ofJJKby far.

1Sukuna’s Cursed Technique
By far, the strongest curded technique that fans have seen any ancient sorcerer perform belongs to Sukuna. He has an unnamed cursed technique that allows him to slice and dice his enemies.
Sukuna has the ability to use Cleave and Dismantle.He also has a newly acquired ability that allows them to split the world. Sakuna can also manifest a domain expansion, called Malevolent Shrine, which amplifies his powers even further and makes sure that hardly anyone can survive his onslaught.