Glyph Magic

According to "Adventures in the Elements", the Boiling Isles is full of magic glyphs hidden within nature (ex. the light glyph can be found in the stars, the plant glyph can be found inside flowers, the ice glyph within snowflakes, and the fire glyph in scorch marks).

Performing glyph magic effectively requires that both the glyph is drawn accurately enough and that the caster know what they need the glyph to do when they activate it, else they will receive underwhelming and unintended results. Glyphs are not only found in spell circles, but can also sometimes generate spell circles themselves when cast. It has been shown that this can be used in order to have a spell active not where the glyph was placed, but to a nearby location the caster wants the spell to be, such as when Luz used a plant glyph to make a tower of vines underneath her instead of where the glyph was placed in front of her, the glyph forming a spell circle connecting to it around Luz. Furthermore, although usually they need to be placed on an object to directly affect it (rather than indirectly, such as launching ice at something instead of freezing it), there are cases where a glyph only needs to be activated in an object's vicinity to have its magic affect it, such as when Luz heated and melted a metal grate with a fire glyph by activating it in front of the grate rather than placing the glyph on it.

Given that Amity, King, and Eda reacted with curiosity and wonder upon seeing Luz casting magic through glyphs, such practice had apparently become a lost knowledge sometime prior to her arrival in the Demon Realm, either forgotten or rendered obsolete in the light of the discovery of more efficient methods. One such method is through drawing power from the magic bile sac attached to a witch's heart, a method exclusive to witches and biped demons of Boiling Isles — without it, one must improvise by either actually drawing a picture of the glyph for the desired spell, or by using a training wand or similar device.

Since glyphs draw magic from the environment, they are ineffective in the Human Realm since there is no magic around to harness. However, Luz discovers that glyphs specifically are powered by the Titan itself, and being within range of Titan's Blood, even if that distance is hundreds of feet away, can allow a person to perform glyph magic in the human realm. However, the further a person gets from the blood, the weaker and less stable the glyph spells become, until eventually they don't produce an effect beyond destroying themselves; getting even further away will only cause partial self-destruction such as burning away some lines, until eventually the glyphs will become completely inert. There are two exceptions to sources of Titan's Blood that do not empower Glyphs in the Human Realm; King and the Portal Key, though why that is has not been stated.

The glyph system used by Luz is no longer usable due to the Titan finally passing on, however King is able to create a whole new glyph system with different glyphs.

### Combinations

In "Escaping Expulsion", Lilith discovers that by drawing a "glyph combo" by chaining glyphs in a certain order within a larger shape, it is possible to organize the commands over magic and thus achieve different specific effects. This runs counter to the incorrect method used by Eda of overlapping glyphs on top of each other, as this is the equivalent of giving different commands at once and causes the magic to be confused, resulting in the spell going wrong. Although the most common shape used to chain glyphs in a combo is a circle and its variants, Luz has shown that other shapes can used to create a glyph combo, as seen in "Once Upon a Swap" when she created a rectangle-shaped combo.

Combinations can be broken down into two groups: combos that use multiples of only a single glyph to achieve specific, specialized, or enhanced effects of their associated element; and combos that use multiple different types of glyphs to achieve new magical effects outside the capability of a single glyph type's element. There are currently two known examples of the former:

* **Circuit Glyph:** A glyph combo for a light circuit used by Luz in "Once Upon a Swap", which has ten light glyphs placed in two rows of five, with straight lines connecting them into a rectangle. When cast, it creates an animated image similar to a neon light sign. Interestingly, the light glyphs seen on this combo are different from the ones usually drawn by Luz: the two parallel lines in the center, as well as the circle and lines at the top, are instead replaced with two diamond shapes. How this affects the resulting spell, or if it affects it at all, is unknown.

* **Sculpture Glyph:** A glyph combo for an ice sculpture combo used by Lilith in "Escaping Expulsion", which usually has an ice glyph at the top of the circle, with another on the bottom. When cast, it creates ice sculptures based on the caster's will, such as creating ice popsicles, an ornate crown and jewelry, and a large-scale life-like model boat. Two other types of ice sculpture combos have also been seen: One with four ice glyphs on the corners of the circle, which has not been used, and another with a light glyph at the bottom instead of an ice glyph, which was used to create the ice popsicles.

### Other Glyphs

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