Magic

Magic is the concept of having supernatural abilities. Though humans has magic, monsters are more known for it and monsters are naturally skilled with magic from the day they're born. Due to a recent evolution, both magic in monsters and humans have expanded to include the same abilities as Gems.

Human Magic
Though monsters can do it too, humans are more known to be assigned/have a magic summoned weapon. Offensive weapons are much more common than defense ones, and majority of summoned weapons are melee. Some weapons, like Daniel's bow, may be more dependent on magic.

Summoned Weapons
So far, most humans have a summoned weapon. Human fusions combines its fusees' weapons to make a new weapon.


 * Shae has a staff
 * Wyatt has a shield
 * Daniel has a bow
 * Tommy has a large gavel
 * Nick has a sword

Traits
Every human has one of the following traits, shown by the color of their SOUL. There are 7 colors with 7 different traits. The most common is red, but the extra amount of DETERMINATION may vary, though all humans have a lot of DETERMINATION by default, regardless of SOUL trait.


 * Red is DETERMINATION
 * Orange is BRAVERY
 * Yellow is JUSTICE
 * Green is KINDNESS
 * Blue is INTEGRITY
 * Cyan is PATIENCE
 * Purple is PERSERVERANCE

Monster Magic
Monsters are known to have very diverse magical abilities, such as SOUL modes and unique bullet patterns. Unlike humans, monsters are more in sync with their SOULs. Magic also makes up a good portion of monsters. If one were to lose most or all of their magic, their body will become more fragile than it already is and they will get severe fatigue.

Summoned Weapons
So far, only Martel and Cooper have a summoned weapon, though Martel's magnums didn't originate from his magic. However, fusions are more likely to have a summoned weapon, though is not a combination of the fusees' weapons.


 * Martel has magnums
 * Cooper has nunchuks

Traits
Monsters do not have traits associated with their SOUL. However, they have a much more vivid variety of SOUL colors (please see note #1 in the Trivia section below). Their magic is typically the same color as their SOUL, as well as liking the color that happens to be their SOUL color, though there are exceptions. A rare phenomenon can occur where a monster poofs and reforms, but their SOUL./magic color changes. Unlike humans, monsters' SOULs are of an upside-down heart.


 * Papyrus's SOUL is orange.
 * Mettaton's SOUL is magenta or pink.
 * Sans's SOUL is cyan.
 * Gaster's SOUL is purple.
 * WD's SOUL is red-orange.
 * Aster's SOUL is blue.
 * Ariel's SOUL is dark blue.
 * Helvetica's SOUL is yellow.
 * Cooper's SOUL is pink.
 * Martel's SOUL is gold.
 * It was formerly blue-gray.
 * Calibri's SOUL is light green.
 * Tinero's SOUL color is light red.
 * Oswald's SOUL color is medium blue.

HOPE
HOPE serves as a monsters' equivalent to the humans' DETERMINATION. The amount hope varies monster to monster. Though not as strong as DETERMINATION in most cases, HOPE is still quite powerful. Papyrus has the most HOPE, with Ariel having the 2nd most. If a monster loses too much HOPE, they become morbid and begin saying morbid, hopeless things. Like DT, HOPE may be harvested.

Universal Abilities
Humans and monsters share some magic-related abilities with little to no difference. This includes fusing, poofing, and summoning weapons.

Fusion
Both monsters and humans can fuse. Monsters can fuse with other monsters, humans can fuse with other humans, and monsters can fuse with humans. To fuse, a dance can be done to help the fusees become in sync to make fusion easier, though dancing can be very loosely defined and can be a very short dance. When fusion is successful, the fusion's height is of the sum of the fusees' own heights, the SOUL colors are combined, which becomes the fusions' SOUL and magic color. The physical traits of the fusees is also combined. The strength depends on the ATK and DEF of each fusee and their skillset, as well as their races (monster or human).

"Poofing"
Commonly referred to as "poofing", monsters and humans may take too much damage. Due to the evolution, humans and monsters no longer immediately die from fatal damage (though some exceptions have occurred), but instead their matter retreats into their SOUL to regenerate. Depending on how they're poofed, it can take anywhere from a few minutes to a few weeks, or even months. Poofing seems to be more beneficial to monsters, as monsters are much more fragile than humans. Regeneration can be sped up by fusing with the SOUL, not causing any negative effects.

Summoned Weapons
As mentioned, summoned weapons is universal, but it's more common with humans, as monsters have diverse magic and do not have a need for a 'designated weapon', though they can still have a summoned weapon or a weapon of choice.

Monster-Exclusive Abilities
Some monsters have the ability to change the SOUL mode of those with a SOUL. However, the SOUL mode changes seems to be unique to relatives or people associated together. Unlike humans, monsters has more diverse magic.

Overview
All skeleton monsters can do bone attacks varying in shape, size, speed, and damage. All can teleport, though Sans and Gaster is the most notable users of this ability. Sometimes, limitations can change the teleportation ability's usage; one notable example is Ariel can teleport, but the farther she TPs away, the longer it takes to get to the destination. Papyrus CAN teleport, but does not know how to use it.

List

 * Varied bone attacks
 * Teleportation

Overview
All members of the skelefam family can use SOUL mode blue and use Gaster blasters. This includes skeletons married in, though they have their own version of them. Skelefam members is known to use telekinesis to enhance their SOUL mode blue ability; combining the usage of both allows the skeleton to freely move/hold the person in the SOUL mode, though it takes more energy. When telekinesis is used, a 'ring' pupil appears in their left or right eye socket (which eye socket depends if the skeleton is left-handed or right-handed). The color of it is tied in to their magic color. The ring pupil can also appear if the skeleton is feeling an extreme negative emotion, such as severe distress or anger.

List

 * SOUL mode blue
 * Telekinesis
 * Gaster blasters

Individual Unique Abilities
Some monster characters may have an unique magic ability that nobody else may have.


 * Martel has a SOUL mode unique to him; SOUL mode blue-gray. When one's SOUL enters this mode, their attacks are mirrored, thus serves as a thorns ability of sorts.


 * Sans has KARMA (KR) based magic, where his magic is more effective against those with high LV; the higher the LV of the other, the more effective his karma magic is. Due to his ATK being 1 and his karmic-based magic, his magic is nearly ineffective against low or no LV people. Karma magic acts like a poison, slowly draining a certain amount of health overtime rather than instantly taking all the damage.
 * His KR magic is ideal against those with 20 LV or higher.
 * KR can also disable invincibility frames, thus you can take constant damage.
 * Gaster blasters does the most KR damage.

Trivia

 * Canonically, (in UNDERTALE) monster SOULs are all white.
 * The ring pupil is only shown if telekinesis is being used.