Yes to all modification permissions!

INTERROGATOR'S WILL IN 101 WAYS
(sub)domain: ILLUSION - PURE ILLUSION
history: A collection of sensory illusions made primarily to torture out confessions. Is it intensely unethical? Maybe. But there are no marks left on the body, so who can sue?

name of spell: INTERROGATOR'S WILL: TICKLE MONSTER
(sub)domain: ILLUSION - PURE ILLUSION
description: The name sounds rather innocuous and out of place for this collection. This spell makes a place on the target's body feel ticklish. Sounds harmless, but if used by a masterful witch, many more parts of the body might feel ticklish. Ever got tickled with no end in sight? Yeah, not fun.

name of spell: INTERROGATOR'S WILL: CRUSH
(sub)domain: ILLUSION - PURE ILLUSION
description: A gruesome illusionary spell that causes the target to feel like they have broken a bone at once, causing great pain. Beginner witches might only be able to cause a sprain like pain on a finger, but master witches might be able to cause pain to a whole limb. Only one limb at a time may be casted on.

name of spell: INTERROGATOR'S WILL: CRAWLING SKIN
(sub)domain: ILLUSION - PURE ILLUSION
description: They can't see it, but underneath their skin will feel like hundreds and thousands of tiny insects crawling all over their body. Higher levelled witches could double up on the illusion with visual hallucinations, making it that much more unnerving.

name of spell: INTERROGATOR'S WILL: LOVER'S CRY
(sub)domain: ILLUSION - PURE ILLUSION
description: An unnerving audial illusion that causes the target to hear a loved one's cry of despair or screams of pain. Useful for blackmailing out information. Beginner witches might not be able to grasp the nuances of the person's voice accurately, especially if they've never met them before. Master witches can recreate much more accurate voices, even if they have never met them before.

name of spell: ART OF WAR: MASOCHISM
(sub)domain: ILLUSION - PURE ILLUSION
description: Something in the target's mind causes them to enjoy their own pain and compels them to get hurt again to heighten their own excitement. (this could be a roll modifier for dodging or something)

name of spell: ART OF WAR: DEAFEN
(sub)domain: ILLUSION - PURE ILLUSION
description: As it says on the book. An audial illusion that deafens the target, increasing their vulnerability to sneak attacks. Duration of the spell increases with the caster's level.

Air, Aer

name of spell: Cloud Multiplication 
(sub)domain: Air 
description: Duplicates cloud shaping spell to increase an active spells power.
modification permission: yee

name of spell: Bloom on the Wind
(sub)domain: air
description: The witch blooms tiny pockets of air along a direction of their choosing. The blooms cause violent bursts of kinetic energy causing multiple knockback effects. 
modification permission: yee

name of spell: Windborne Creation
(sub)domain: air
description: An air elemental is created in the shape of a butterfly. The creation cuts anything that gets close to it with violent winds. 
modification permission: yee

name of spell: Skill: Scentless
(sub)domain: air
description: This skill makes it so the witches scent does not travel beyond arms length on the wind. This makes tracking very hard if not impossible via scent. 
modification permission: Yes

name of spell: Scent of Blood
(sub)domain: Air
description: An illegal spell that that allows an air witch to cause induce fear into others by mixing their blood into the air with their mana. It blocks any aroma based spells from working while active.
modification permission: yee

name of spell: Lightning Purifies
(sub)domain: air
description: the witch uses their mana to manipulate atmospheric winds to strike down a bolt of lighting from the heavens. This lightning is bright purple in color. It can temporarily seal a rift via cauterization if it descends upon it. All mana around it returns to its natural stable form.
modification permission: yes ofc

name of spell: Roar of the Thunderbird
(sub)domain: air
description: witch breathes out mana infused air that is highly agitative to the surrounding molecules creating static electricity along its path. Strength from small shock to stun gun depends on witches level. 
modification permission: yes ofc

name of spell: Guiding Winds
(sub)domain: Air
description: A spell that is used to track. A magical wind will blow an object of your choice in the direction of its owner. Requires an item with a strong connection.
modification permission: yee

name of spell: Windless Valley
(sub)domain: Air 
description: It creates an area without wind by funneling all winds into a barrier around a given perimeter. The circling winds are highly violently. Size of wind barrier varies on the witches strength. No Aer magic can be used inside it.
modification permission: yee

name of spell: Wyvern’s Song
(sub)domain: Air 
description: A spell that creates a large tornado the user can push in a given direction.
modification permission: yee

name of spell: Wind God’s Protection
(sub)domain: air 
description: A spell that creates a large dome of air around the user or target of choice that will violently shred anything caught in it including the caster.
modification permission: yee

name of spell: Love In the Air
(sub)domain: Air 
description: The spell is the equivalent to an aromatherapy aphrodisiac. Those who this spells is cast on find the air around find themselves more relaxed and more pliable to suggestion by the caster. The smell is unique to the caster and remains the same. The stronger the witch the longer this effect will last.
modification permission: yee

name of spell: Purified Air
(sub)domain: Aer
description: A spell that condenses all toxins into a small condensed ball purifying the air with the space of the spell.
modification permission: yee

Pure Illusion, Illusion

name of spell: Carnival Music 
(sub)domain: Illusion 
description: This spell creates the auditory illusion of music. Commonly used by circuses to create the iconic circus theme to everyone nearby to announce they were in town. The volume can increase with more mana used.
modification permission: yee

name of spell: Hologram Memory
(sub)domain: Illusion 
description: A witch replays a holographic version of a memory they have. They can tweak or intentionally change details of said hologram to their liking. Also works with dreams.
modification permission: yee

name of spell: Salt and Iron
(sub)domain: illusion 
description: The spell creates illusion of a salty iron taste in the targets mouth tasting like blood. Anything they eat tastes like blood.
modification permission: yee

name of spell: a pebble in my shoe
(sub)domain: illusion
description: The spell creates the illusion of a rock in one’s shoe. Or both shoes. Cruel.
modification permission: yee

name of spell: Whispers in the Dark
(sub)domain: illusion 
description: The spell creates strange whispering in a language the victim doesn’t understand. The voices create a sense of fear and panic in those afflicted by this spell. As the spell feeds the information directly into the users mind it bypasses the auditory organs meaning even the deaf aren’t immune.
modification permission: yee

name of spell: Daemon Fog
(sub)domain: illusion
description: The spell creates a black mist like fog that rolls in from the casters chosen direction. It gives a feeling of dread and coldness in its wake.
modification permission: yee

name of spell: Black Tome adv (illegal) 
(sub)domain: darkness 
description: The spell creates a black book construct that enhances all darkness based spells cast though it two ranks above the witches current level. The book glows an strange red color. The book slowly drains the sanity of the caster when used leading to its current ban. It is said that prolonged use stains the users fingers black. Consistent use makes this change permanent.
modification permission: yee

name of spell: Horror Anthology: Doors
(sub)domain: illusion
description: A series of spells often used in haunted houses. The spell creates the illusion of closing, opening or locking doors at the users discretion. 
modification permission: yee

name of spell: Horror Anthology: Whisper
(sub)domain: Illusion 
description: A series of spells used in haunted houses. This spell allows the witch to create or mimic voices coming from any direction or closeness within a small area around themselves. Beginners have a few meter range and experts can make this happen within a small village.
modification permission: yee

name of spell: Horror Anthology: Misty Night
(sub)domain: Illusion
description: A series of spells used by haunted houses. This spell creates the illusion of mist rolling in from the dark. The thickness of said mist vary by witches strength. Stronger witches can even change the color of the fog. 
modification permission: yee

name of spell: Horror Anthology: Familiar
(sub)domain: illusion
description: The spell is part of the horror anthology series. It allows the witch to mimic the casters familiar and project thoughts or feelings into the targets mind. Unlike the real connection the caster does not get to hear the reply it is one way. Stronger witches are said to be able to talk over or even quiet the real familiar voice with this illusion.
modification permission: yee

name of spell: Horror anthology: Pain
(sub)domain: illusion   
description: The spell is part of the horror anthology series. It allows for the caster to create full localized pain to the target like an ache. The stronger the witch the more powerful the pain sensation going from small headache to stab wound.
modification permission: yee

name of spell: Horror Anthology: Mirror Mirror
(sub)domain: illusion 
description: The last of the horror anthology spells this spell allows one to reflect themselves or an image of their choosing into a reflective surface nearby with mana. The stronger the witch the more intricate the illusion can be.
modification permission: yee

name of spell: Necronomicon: Living Flame
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. the living flame chapter details the communication and invocation of the living flame, allowing the witch to project an aura of heat around them. firecallers within the aura will find their spells to be more potent, while aquos witches will have their spells weakened. prolonged invocation of the living flame places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: King of the Ivory Throne
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The King of the Ivory Throne chapter details the communication and invocation of the king of the ivory throne, allowing the witch to communicate with insects. skilled witches have been known to command the insects to attack or protect themselves. prolonged invocation of the king places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: Harbinger (advanced)
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Harbinger chapter details the communication and invocation of the Harbinger, allowing the witch to cause an appropriate, small-scale natural disaster (tsunami if near water, eruption if near a volcano, etc). Prolonged invocation of the Harbinger places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: Sleeper of Ravermos (variant)
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Sleeper of Ravermos details the communication and invocation of the sleeper of ravermos, allowing the witch to manipulate plantlife. Under the necrotizing variant, the user causes plantlife around them to wither and die. Under the proliferating variant, the user causes plantlife around them to grow at a rapid pace, as well as making them appear otherworldly. You have chosen the _____ variant. Prolonged invocation of the Sleeper of Ravermos places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: Puppeteer
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Puppeteer chapter details the communication and invocation of the Lady who Pulls the Strings, allowing the witch to animate puppets which take on a spectral form. Prolonged invocation of the Lady who Pulls the Strings places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: Lord of the Woods
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Lord of the Woods chapter details the communication and invocation of the Lord of the Woods, allowing the witch to communicate with plants. Especially skilled witches can manipulate the plants around them. Prolonged invocation of the Lord of the Woods places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: Crawling Chaos
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Crawling Chaos chapter details the communication and invocation of the Crawling Chaos, allowing the witch to make their appearance unfamiliar to anyone who lays eyes upon them. Prolonged invocation of the crawling chaos places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: Dream Witch
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Dream Witch chapter details the communication and invocation of the Dream Witch, allowing the user to share their consciousness with up to two other people, including their thoughts, feelings, memories and experiences as they think and feel them. This increases by one person per rank. Prolonged invocation of the Dream Witch places increasing mental drain on the user and any users that they are currently bound to.
modification permission: yea

name of spell: Necronomicon: Tenebrous One Lost Pages (advanced)
(sub)domain: Constellar Starcalling
description: PREREQUISITE: NECRONOMICON: TENEBROUS ONE
A dubiously legal series of books whose pages seem to emanate evil. These lost pages concern the creation of the scarlet rot, a virulent spore-like poison which can quickly spread and grow. This allows the user to trap an area with scarlet rot, and any living creature that comes into with scarlet rot will begin to suffer from coughing, blistering, nausea and dizziness. Prolonged exposure may cause permanent damage to lungs. Prolonged invocation of the Tenebrous One's scarlet rot places accelerated mental drain on the user, and must be already invoking the tenebrous one to use.
modification permission: yea

name of spell: Necronomicon: Tenebrous One
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Tenebrous One chapter details the communication and invocation of the Tenebrous One, allowing the witch to promote the growth of fungi, decomposers and other things which accelerate rot, as well as bacteria which may cause infections to open wounds. Prolonged invocation of the Tenebrous One places increasing mental drain on the user.
modification permission: yea

name of spell: Necronomicon: Divinity
(sub)domain: Constellar Starcalling
description: A dubiously legal series of books whose pages seem to emanate evil. The Divinity chapter details the communication and invocation of the Divinity, allowing the witch to appear more alluring and likeable to the people around them. Prolonged invocation of the Divinity places increasing mental drain on the user.
modification permission: yea

name of spell: Celestial Rain
(sub)domain: Stellar Starcalling
description: The witch calls down a beautiful shower of starlight that is cold to the touch. The motes of starlight stick to the people they touch, becoming a barrier that outlines them in darkness. Bladed weapons have a harder time cutting through the starlight barrier, which acts as a sort of second skin.
modification permission: yes

name of spell: Skill: Soothing Stardust
(sub)domain: Stellar Starcalling
description: Allows the witch to utilize the healing aspect of stardust, allowing their starettes and stellar explosions to heal instead of harm. Stardust healing is rapid but weak, able to heal multiple people at a time - however, it is difficult to exclude people from a starette's healing.
modification permission: yes

name of spell: Ring of Saturn
(sub)domain: Stellar Starcalling
description: The witch creates a thin ring of ice, rock, and stardust that quickly rotates around them. Coming too close to the ring will result in a few scrapes and bruises. Often used to create space in a battle. Powerful witches can create sharper rings in more numbers.
modification permission: yes

name of spell: Hymn of the Dreaming Witch
history: Part of a series of songs and sermons which are designed to venerate communion with beings known as as the sleeping ones. These hymns are mostly likely illegal, with the songs written in an unfamiliar language lost to time.
(sub)domain: spellsinging
description: allows the witch to manipulate the memories of those who listen to the song during the time the witch is singing. whilst beginners may only be able to make the events that take place during the song feel like hazy dreaming memories, experienced witches can completely block out memories with enough concentration. extended periods of singing will lead to the song affecting the witch singing, leaving holes in their memory at random.

name of spell: Hymn of the Yellow Shepherd
history: Part of a series of songs and sermons which are designed to venerate communion with beings known as as the sleeping ones. These hymns are mostly likely illegal, with the songs written in an unfamiliar language lost to time.
(sub)domain: spellsinging
description: Allows the user to sing a comforting song that lulls them into a false state of comfort and security, allowing the witch to conceal their identity. Whilst people are completely conscious, it creates an innate trust with the witch who is singing, allowing the witch a greater freedom of interaction and ability to convince the listener to do things that they would not ordinarily consider.

name of spell: hymn of the blind idiot
history: Part of a series of songs and sermons which are designed to venerate communion with beings known as as the sleeping ones. These hymns are mostly likely illegal, with the songs written in an unfamiliar language lost to time.
(sub)domain: spellsinging
description: Allows the user to sing a sharp song which sounds like nonsense. The singer trades their senses of hearing/vision (pick one) to do the same to any enemies that they mark before the song begins.

name of spell: Hymn of Encroaching Dread
history: Part of a series of songs and sermons which are designed to venerate communion with beings known as as the sleeping ones. These hymns are mostly likely illegal, with the songs written in an unfamiliar language lost to time.
(sub)domain: spellsinging
description: Allows the user to sing a song that inspires fear and dread, promoting listeners to freeze in place or run and hide. the song can also be used to demoralize and cause doubt, but does not work as effectively as causing outright dread.

name of spell: draconic trance; nidhogg's wrath (advanced)
history: a joint project between transfiguration and summoning, aiming to allow a witch to warp their body to match fantastical creatures and legends. this tome in particular concerns the great dragons that marked the dragonsong war.
(sub)domain: transfiguration
description: allows the user to take on draconic traits, including wings for flight, claws, horns and fangs which are black in colour. the transfiguration also imparts a great deal of strength and speed, at the cost of placing the user into an uncontrollable rage. stronger witches may be able to control their newfound strength, but weaker witches have been known to turn on allies for minor slights or nothing at all.

name of spell: draconic trance; hraesvelgr's aegis (advanced)
history: a joint project between transfiguration and summoning, aiming to allow a witch to warp their body to match fantastical creatures and legends. this tome in particular concerns the great dragons that marked the dragonsong war.
(sub)domain: transfiguration
description: allows the user to take on draconic traits, including wings for flight, claws, horns and fangs which are white in colour. hraesvelgr's wings are large enough to create a near-impenetrable shield against magical and mundane means, allowing the user to protect others and themselves. also enhances any restorative spells cast in the area, making it a perfect spell for protection and recovery in the midst of battle. however, whilst under the effect of the spell, the user may not use any offensive magic or the aegis will break.

name of spell: mythic shapes (advanced)
(sub)domain: transfiguration
description: required, zoologist. allows the user to choose one mythical form to use for transfiguration spells.

modification permission: Go for it! For all!

name of spell: Anasazi Vision Chronicles: Mann Reveal
history: The spell was created by the Anasazi indigenous peoples to remove veils from areas.
(sub)domain: Pyros/Lightcraft
description:A spell used to reveal something invisible; whether that is a person, veil, ward. The spell is performed by the caster making a small window with the thumb and index finger of their hands.

name of spell: Chkhartishvili’s Enveloping Warmth
history: Not much is known of Chkhartishvili, but his creation of this spell likely occurred during the Great War; a great spell when up against a icecrafter; it’s said that Chkhartishvili’s own twin sister was the inspiration or cause of this spells creation.
(sub)domain: Pyros/Firecalling
description: This spell generates internal warmth within the body to ensure survival in extremely cold environments. Requires a steady flow of mana, thus witches cannot cast other spells when this one is enacted.