In Jujutsu Kaisen, CT stands for Cursed Technique, which is a power system based on cursed energy. Cursed Techniques are activated by pouring cursed energy into them, utilizing one of two processes: Lapse or Reversal. There are many different types of Cursed Techniques in the series, each with its own unique abilities and strengths. Some of the most powerful and complex Cursed Techniques in Jujutsu Kaisen include:

• Projection Sorcery: An inherited power passed down through the Zenin Clan that allows the user to create and control illusions.
• Puppet Manipulation: An innate ability wielded by Kokichi Muta that allows the user to control puppets.
• Idle Transfiguration: A Cursed Technique wielded by Mahito that allows the user to control the soul and physical form of their enemies with a simple touch.
• Limitless: A Cursed Technique wielded by Satoru Gojo that grants the user near invincibility by manipulating cursed energy and space.
• Blood Manipulation: A Cursed Technique wielded by Noritoshi Kamo that allows the user to manipulate blood and use it as a weapon.

These are just a few examples of the many Cursed Techniques in Jujutsu Kaisen. Each technique has its own unique strengths and weaknesses, and mastering them is key to becoming a powerful sorcerer in the series.