Stamina

Stamina
A measure of a character's endurance, the amount of time they can exert themselves before tiring.

Tier 0
The character's stamina is below even the most pathetic of humans, causing them to become completely exhausted within moments to a few minutes.

Tier 1
Tier 1 stamina means that a character's endurance is within human limits, meaning exerting themselves at peak capacity tires them in less than a minute.

Tier 2
This level of stamina surpasses human limits. At lower levels of the tier, characters are able to fully exert themselves for a few minutes before fatigue begins impairing them, whilst those at the highest level of the tier can fully exert themselves for up to an hour.

Tier 3
The minimum amount of time a character at this tier of stamina can exert themselves is an hour at full capacity. Those at the pinnacle of this tier can exert themselves at their maximum level for up to an entire day.

Tier 4
Those with tier 4 stamina are able to fight at minimum, for at least an entire day without feeling the slightest hint of tiring. The highest levels of the tier might be able to use their full capabilities for an entire week before they even begin to slow down.

Tier 5
Tier 5 stamina entails being able to operate at peak efficiency for at least a week, up to an entire month, before even beginning to slow down.

Tier 6
Stamina at tier 6 allows a character to operate at peak efficiency for over a month, and at the highest levels of the tier, up to an entire year, before even beginning to slow down.

Tier 7
A year is the minimum amount of time a character with tier 7 stamina requires before they begin to become impaired by fatigue, up to a maximum of an entire decade.

Tier 8
Those at tier 8 stamina can exert themselves at their peak for decades at a time, up to a maximum of a century.

Tier 9
Tier 9 stamina allows a character to utilize their maximum capabilities for centuries at a time before tiring, to a maximum of a millennium.

Tier 10
Those with tier 10 stamina can fully exert themselves for thousands of years at a time before beginning to tire.

Tier 11
Those with tier 11 stamina are able to operate at full capacity forever, unless there is some sort of outside interference that drains their vitality or negates whatever ability grants them such tremendous fortitude.