Image credit: Bones
My Hero Academia season 7 is here, and with the introduction of Star and Stripe, a powerful new quirk has emerged, and her 'New Order' quirk explains why All For One wants it for himself.
Image credit: Bones
The New Order explains that she can practically do whatever she wants under certain limitations. She can modify the rules of everything she touches, even apparently intangible things like the air and flashes of light.
Image credit: Bones
It is initially revealed that the New Order is a quirk that enables Star and Stripe to impose new rules on something by touching and calling it out.
Image credit: Bones
The first time this was seen was when Star and Stripe touched the air, causing it to vanish around Shigaraki so he might suffocate.
Image credit: Bones
However, as explained by Star and Stripe, this quirk is not without limitations. She can only establish two rules at once, one of which is to always focus on herself to maintain her strength. There is a limit to how much strength she can add to her physical body, but there appears to be no limit to how weak she can make everything.
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She also has to physically touch the object/person she wants to set rules for and speaking its name limits her ability to kill Shigaraki because he doesn't identify himself as Shigaraki during that struggle.
Image credit: Bones
To enforce rules, she must also physically touch the thing in question. Furthermore, the requirement of calling its name is also a limitation since, in that fight, Shigaraki doesn't identify as Shigaraki (because he's still working out where All For One fits into his thoughts).
Image credit: Bones