All-or-Nothing

's' is a threat-assessment term used by the PRT to refer to capes with highly potent powers.

All-or-Nothings specialized in directly dealing damage can be referred as Annihilators, so there is some overlap with the old Nuker classification.

Examples

 * Antares
 * Ashley Stillons
 * Birdbrain
 * Chort
 * Clairvoyant
 * Clockblocker
 * Contessa
 * Eidolon (Depending on the powers he has at a given moment)
 * The Subway Cluster
 * Glaistig Uaine (Depending on the shadows she has at a given moment)
 * Gray Boy
 * Hookline
 * Precipice
 * Scrub
 * Siberian
 * Torso
 * Unnamed Fallen member
 * Unnamed Lord of Loss soldier

Details
All-or-nothing is not strictly linked to the general threat level of a parahuman, but denotes high quality, "hard counter" nature of the power itself. For example Clockblocker, Damsel of Distress and Torso all have very strong powers once applied, but are severely limited in that three of them have to use their own legs and wits to get to the target, which hurts their general threat levels. Contessa, on the other hand, is directly aided by her power to be in the right place in the right time, which solidly puts her into 12+ "do not expect to win" category of threat.

Expanding on this, the parahumans showcased here 'break' the rules that other parahumans follow. Part of what makes a parahuman an All or-Nothing is the sheer violation of physics they accomplish, that takes them a step beyond the consequences that other parahumans have to deal with.

Despite this these powers can be worked around or canceled out through various means, including:
 * Trump powers.
 * Oblique powers.
 * Interaction with other All-or-nothing powers.

Some tinkers, such as Armsmaster, are able to replicate these effects.

Using All-or-nothing powers is one of the very few ways to kill an Endbringer or an “unkillable” cape like Alexandria or Gavel.

Background
The only reason Humanity has a chance was because this came at the right time.

Story Start
Was used multiple times against the Undersiders.

Their use was showcased against Leviathan.

Post-Leviathan
The limitations of an All-or-nothing cape was shown against members of the Slaughterhouse Nine.

Post-Slaughterhouse Nine
Clothsline operation was important in turning the tide against Echidna and taking down Ignis Fatuus.

Post-Echidna
Several powers were used to great effect against Behemoth.

Post-Timeskip
Siberian and Clockblocker canceled each-other out.

Gold Morning
Was intrinsic in ending the event once the enemies will to fight was broken.

Early-Ward
One such cape settled in Hollow Point.

Mathers Compound Assault
Three users, two from the same cluster were on the battle showcasing the dangers of this quality.

Post-Goddess' Takeover
Bluestocking gets a clarification on the PRT usage of the term versus the general one.

The Ice Breaks
Several capes of this description were grouped as 'annihilators' by Antares, meaning those with the ability to seriously hurt Titans. Some though, like Gundeck, Teem and Solarstare may not actually qualify for the All-or-Nothing.

Clockblocker's power was used to temporarily paralyze The Simurgh, and produced a fumble with Hookline due similar all-or-nothing quality.

Trivia

 * It is an obvious point of contention in the fandom which capes actually fit in this category.
 * There was some early confusion in the fandom between those with this quality and the Breaker classification. Both break 'rules' but in different ways and in ways beyond that of the typical parahuman.