Life-Force Factor Manipulation

The skill to '''use the ability/power that is "inside" its own life-force. Variation and technique of Life-Force Manipulation.'''

Capabilities
The user of this ability applies the principle "each soul have a power inside" that give to the user a skill, a power or both of them.

Applications
The "range" of this skill don't have a specific "target" so the user can unlock one of all the possible powers (more powerful the power is, more low the chance of unlock it) that exist, from the common Flight to a Metapotence, from a manipulation type power to a creation type power, from an alternative physiology to simple physical or mental booster, etc.

Type
There are two types of this ability, the first one is soul related only while the other is genetic affected.

1) Soul Related The power obtained come purely from the soul of the user.

2) Genetic Affected The power obtained is affected by genetic factor that in some case can create an "hereditary power" (like the Sharingan of the Uchiha clan in Naruto)

Manifestation
There are two ways for "manifest" this ability, "Via Object" and "Direct Revelation":

1)  Via Object The power is show using an object that work as medium, in this case there are three sub-types:
 * Eating, the object "eat" the energy of the user and gain the power, this way the object "customize" itself in a way that reflect the owner and, in some case, can develop a will.
 * Custom, the object if crafted for work the best for a specific user or for similar one.
 * Industrial, generalized object that work for any user without any distinction.

2) Direct Revelation The power is "shown" using the owner's body as medium, in this case the user can be exchanged for an esper (like the ones in the anime To Aru Majutsu No Index) to mutant people (like in the X-Men Marvel Comics)

Limitations

 * The user gain only one power.
 * The user gain the same weak point of the power.

Trivia
It's possible that an user can gain other abilities thanks to the possesson of other souls that can be sealed inside the user's body (like in Naruto), sealed inside object (like the case of Hyodou Issei in Highschool DxD), etc.

Known Users

 * Shinigami (Bleach); Via Zanpakutō
 * Flame User (Katekyō Hitman Reborn!); Via Rings