Editing Invested Art

{{magic

|[[Nomad]] on the manipulation of [[Investiture]]{{book ref|tsm|13}}

An '''Invested Art''', sometimes referred to as '''arcana''', is a magic system in the [[cosmere]].{{wob ref|14446}} Invested Arts can vary wildly in their appearance, mechanics, and effects, but they all involve practitioners being Initiated and using their abilities to manipulate [[Investiture]].{{book ref|elantris|part=ars}} Planets, [[Shard]]s, and the fundamental forces that make up the cosmere all affect an arcana's function and powers.{{wob ref|11844}}

== Mechanics ==

'''Intention''' is a practitioner's explicit purpose or will when attempting to manipulate Investiture. A person reaches into the [[Spiritual Realm]] with their mind and concieves or wills something to happen.{{wob ref|77}} All Invested Arts require Intention to some extent. In the most simplistic applications of an Invested Art, the body itself has the Intent to survive, which allows a person to use Investiture without realizing it. This is what allows [[Allomancy#Types of Allomancers|Mistborn]] like [[Vin]] to burn trace amounts of [[pewter]] without realizing it.{{wob ref|15700}} More involved magics, however, require more specific Intentions. For an Invested Art like [[Allomancy]], a simple explanation of the metals functions and how [[Compounding]] works is enough to create the Intention required to work the magic.{{wob ref|850}} On the other hand, [[Awakening]] is almost as much mental as spoken. If the visualizing of the [[Command]] is not firm, the Awakened object can behave in a unknown manner or not at all. The more complex the command the more important that mental component is.{{book ref|wb|46}} These two arcana--Allomancy and Awakening--make up opposite ends of the spectrum of how important Intent is for the magic to work, with most falling somewhere in between. This also follows a more general principle of Invested Arts. Invested Arts where the power is internal have more dexterity in how they can use Intent to shape the result.{{wob ref|315}}

[[Hemalurgy]] simply requires that someone intend to make a spike when they do it. Hemalurgy has only one known mental component: that the user or [[Shard]] must be trying to do Hemalurgy (this is [[Ruin]]'s intent when [[Spook]] temporarily gains the ability to burn pewter). This mental component, if not present, renders the spike to a normal metal spike and simply harms the victim.{{wob ref|3214}} When present, it controls what is stolen when used in conjunction with the correct binding point.{{book ref|mb3|42}} [[Feruchemist]]s can use Intention to control what specific attributes they store in a metalmind. For example, a tin metalmind can store and tap a specific sense, while tin enhances all senses in Allomancy.{{wob ref|3415}} [[AonDor]], and likely other [[Sel]]ish arcana, require Intention to draw the symbols required for the Art. Someone cannot draw an Aon and accidentally use Investiture.{{wob ref|3318}}

=== Resonance ===

'''Resonances''' are additional powers or effects gained by people with access to more than one Invested Art or [[Surge]].{{wob ref|4570}} This occurs because powers manifest slightly differently when paired with another power. Both the powers themselves will work slightly differently and the additional resonance will appear.{{wob ref|1524}} An example of a resonance is the mnemonic abilities found in the [[Order of Lightweavers|Lightweavers]] of [[Roshar]].{{wob ref|915}} Resonances dilute as the number of powers a person has increases, so a [[Allomancy#Types of Allomancers|Mistborn]] would not have any.{{wob ref|3959}} Hemalurgy also does not provide resonances, even if only two powers are granted via spike.{{wob ref|12024}}

Invested Arts in the cosmere are a naturally occurring combination of the planet itself, any [[Shard]]s Invested on the planet, and the pre-[[Shattering]] arcana and physics that exist across the cosmere.{{wob ref|11844}} As a result, a Shard's death does not functionally change an Invested Art, even if the arcana uses that Shard's Investiture or [[Intent]].{{wob ref|5269}} An Invested Art can also exist or be discovered on planets that don't have the Shard associated with it in residence. This process is best illustrated by [[Hemalurgy]]. To use Hemalurgy, a practitioner must be in line with Ruin's Intent. However, Hemalurgy can be discovered and used on planets where Ruin does not have an active presence, and Hemalurgy still exists with a few notable changes in mechanics after Ruin's death and the formation of [[Harmony]].{{wob ref|16106}}

The amount of influence a Shard has on a magic system can be examined through a few different changes that have occurred to Invested Arts and the amount of control different Shards have had on those changes. As part of the plan to defeat [[Ruin]], [[Preservation]] altered Allomancy as a clue for mankind.{{epigraph ref|mb3|71}} Preservation replaced [[cadmium]] and [[bendalloy]] with [[atium]] and [[malatium]] among the Allomantic metals.{{wob ref|16082}} One-sixteenth of those who fell sick from the mists remained sick for sixteen days, Snapping into atium [[Misting]]s.{{book ref|mb3|81}} Similarly, [[Harmony]] healed [[Spook]]'s [[savantism]], changed him from a [[tin]] Misting to a [[Allomancy#Types of Allomancers|Mistborn]],{{book ref|mb3|epilogue}} and altered how [[Snapping]] works.{{wob ref|4242}}

Conversely, the changes in Hemalurgy after the [[Catacendre]] are not a conscious choice on Harmony's part, but is instead a side-effect of reigning in Ruin's nature within Harmony. The lack of Hemalurgic decay and the limit on the number of spikes a person can be granted via spikes are a result of modern souls not accepting as much of Ruin's influence, which previously could've warped souls past recognition.{{book ref|mb7|part=ars}}

== Classification ==

Within each Invested Art, the spiritwebs of the practitioners can be viewed as a closed system. The Investiture used to create an effect can come from one of the following three categories within the closed loop.

; End positive

: When practicing an end-positive Invested Art, the practitioner draws in power from an external source.{{book ref|aol|part=ars}} The practitioner gains power from the external source. The Investiture is positive in that it adds -- in most cases temporarily -- power to the practitioner. Most Invested Arts are end-positive.{{wob ref|1084}}

; End-neutral

: For an Invested Art to be considered end-neutral, power is neither gained nor lost{{book ref|aol|part=ars}}. A practitioner manipulates power that already exists or power that comes from themselves.

; End-negative

: In the practice of an end-negative Invested Art, some power is lost.{{book ref|aol|part=ars}} End-negative Investiture is very rare.{{wob ref|1084}}

While every Invested Art can be classified along these categories,{{wob ref|1084}} it is most useful when applied to the [[Metallic Arts]].{{wob ref|171}} Allomancy draws Investiture from [[Preservation]] in a similar way to [[AonDor]] pulling power from the [[Dor]]; both are considered end-positive since they add power to the Allomancer or Elantrian. Allomantic [[atium]] draws power from [[Ruin]]'s concentrated Physical form, but is still considered end-positive as the power comes from an outside source. [[Feruchemy]] is end-neutral, since the amount of Investiture remains constant. [[Hemalurgy]] is end-negative. Investiture held in a spike outside the body decays.{{book ref|mb4|part=ars}}

These categories don't always apply well to other Invested Arts because of differences in how the system is defined when analyzing the net gain or loss of Investiture. Awakening is also considered end-neutral, even though color is lost.{{wob ref|6738}} If defining the system as a single practitioner, Awakening could appear to be either end-positive or end-negative depending on whether they give or receive [[Breath]]s.{{wob ref|171}} However, the same number of Breaths will exist across all Awakeners, and Breath is what fuels the magic, therefore it is considered end-neutral.{{wob ref|3872}}{{wob ref|6738}} [[Surgebinding]] is a magic system whose classification is debatable by arcanists. Surgebinders typically use Investiture that already exists in the system in the form of [[spheres]] to power their magic. Functionally, however, putting Investiture in a sphere merely causes a time delay between adding it to the system and using it to fuel powers, as seen when [[Knights Radiant|Radiants]] pull Investiture directly from the [[highstorm]] or [[Honor's Perpendicularity]] to fuel abilities. As such, most arcanists accept end-positive as the proper Surgebinding classification.{{wob ref|3859}}

Most Invested Arts are end-positive,{{wob ref|171}} with some end-neutral.{{wob ref|1084}} End-negative Invested Arts are extremely rare, with only [[Hemalurgy]] and one currently unknown one classified that way.{{wob ref|2748}}

== Recurring abilities ==

Many of the powers exhibited in the cosmere are a natural part of the cosmere's physics. As a result, powers often have similar effects across different planets despite a Shard influencing how the power is administered and accessed.{{wob ref|15703}} As people in the cosmere become more aware of other planets and magic systems, they start to use the same terminology to describe similar magics from different sources. The follow describes some of the commonly seen magics and the principals that guide them despite the source.

=== Lightweaving ===

[[Lightweaving]] refers to different illusory powers across the cosmere. So far, Lightweaving has been seen in detail as both a part of [[Surgebinding]] and [[AonDor]]. These two Invested Arts use wildly different methods to do so. In Surgebinding, Lightweaving starts as an instinctive process that the practitioner is not aware they are doing. After practice, Lightweavers learn to forge a [[Connection]] with the person or object they want to make an illusion of. This is often done through art or acting. Once the Connection is formed, the Lightweaver is able to create an illusion.{{book ref|sa4|32}} AonDor's Lightweaving is far more regimented and precise. The Elantrian starts with [[Aon#Shao|Aon Shao]] and add a significant number of modifiers to get the desired Lightweaving.{{book ref|elantris|49}} This is how AonDor as a whole works.{{wob ref|901}} [[Yolish Lightweaving]] is the third type of Lightweaving that is known to exist in the cosmere, and the version that predates the Shattering, but little is known about its mechanics.{{wob ref|15144}}

| [[Aether]] || [[Dhatri]], [[Lumar]] || None || [[Tress of the Emerald Sea]], [[Mistborn Era 2]]

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