Geto/Kenjaku's Supreme Art: Uzumaki is a technique that uses cursed spirits in masses to produce a high level cursed energy attack, but kills off those cursed spirits in the process. By implementing cursed spirits semi-first grade or higher into Uzumaki (like Mahito), instead of completely killing off the cursed spirit it will extract their technique for the Jujutsu Sorcerer to use. Meaning Geto/Kenjaku can use Idle Transfiguration.