MHA

Charlie Charlie Quirky

100

This drawback of One For All nearly destroys Midoriya’s arms early in the series.

Recoil damage from uncontrolled output

200

Aizawa’s Quirk fails under this specific physical condition

Blinking / dry eyes

300

Which side of todoroki is which? 

Left - Fire

Right - Ice

400

This biological reason explains why One For All shortens the lifespan of non-Quirkless users

Quirk factor overload

500

This is the technical reason Monoma can use One For All but not to its full potential 

The lack of accumulated stockpiled energy

Villains - Deep Cuts

100

This League member’s real name is Jin Bubaigawara

Twice

200

This villain’s ideology directly opposes hero society’s dependence on symbols

Stain

300

This villain inherits All For One’s will rather than simply his Quirk

Tomura Shigaraki

400

This organization merges with the League of Villains to form a new faction

What is the Meta Liberation Army

500

This doctor scientifically modified Nomu and assisted All For One

Kyudai Garaki

Hero Society & Politics

100

This government system regulates hero activity and licensing

Hero Public Safety Commission

200

This incident causes widespread civilian distrust in heroes

Paranormal Liberation War

300

This hero retires after killing a villain to protect a child

Lady Nagant

400

This societal flaw is repeatedly criticized by Stain and later proven valid

Hero Commodification/Hero Worship

500

This is the primary reason civilians turn on heroes after Tartarus breaks

The collapse of public trust and safety guarantees

One For All - History

100

One For All was originally created as a counter to this Quirk

All for One

200

This revelation explains why One For All evolved beyond strength enhancement

What is the accumulation of Quirk factors across generations

300

This predecessor specialized in Blackwhip

Daigoro Banjo

400

This user’s Quirk allows danger detection before attacks occur

The 4th user (Hikage Shinomori)

500

This user deliberately isolated themselves to avoid harming others

Hikage Shinomori

Heroes and Quirks

100

This Pro Hero’s Quirk allows him to control carbon fibers, not “cloth” in general

Best Jeanist

200

This limitation is Hawks' biggest weakness 

Feather loss tied to stamina and caloric intake

300

Mirio’s Quirk causes this sensory problem while fully activated

Loss of sight, hearing, and breathing

400

This hero must consciously deactivate their Quirk to avoid permanent physiological damage

Fat Gum

500

This is the precise reason Endeavor cannot simply “train past” his overheating weakness

Cellular heat damage exceeding natural heat dissipation limits