3rd Level Evocation
Casting Time: 1 action
Range: 60 ft./5 ft. sphere
Components: V, S, M (an obsidian marble)
Duration: Concentration, up to 1 Minute

A 5-foot-diameter sphere of Oblivion energy appears in an unoccupied space of your choice within range and lasts for the duration. Any creature that ends its turn within 5 feet of the sphere must make a Dexterity saving throw. The creature takes 2d6 force damage on a failed save, or half as much damage on a successful one. The creature must also succeed on a Dexterity saving throw for any equipment touched by the sphere, at the Dungeon Master’s discretion, or the item takes the same amount of damage.

As a bonus action, you can move the sphere up to 30 feet. If you ram the sphere into a creature, that creature must make the saving throw against the sphere’s damage, and the sphere stops moving this turn.

When you move the sphere, it can move in any direction, but if it moves outside of range, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.

3rd Level Evocation
Casting Time: 1 action
Range: 60 yards
Components: V, S, M (Shard of obsidian)
Duration: 6 rounds

When cast, this spell calls into being a 40-foot cube of inky-black nothingness that chills everything inside it. Those within must succeed on a successful Constitution saving throw or take 6d6 points of damage. Those who are successful take only half damage from the numbing cold. All within the cube are chilled to the bone whether they successfully save or not and have Disadvantage to their attack and damage rolls for the next 1d4 + 1 rounds. Those within the cube are unable to see through the blackness; the caster is able to make them out as dim shadows within it.

6th Level Evocation
Casting Time: 1 action
Range: 120 ft.
Components: V, S, M (a flat piece of obsidian)
Duration: Concentration, up to 10 Minutes

A black wall of Oblivion energy springs into existence at a point you choose within range. The wall appears in any orientation you choose, as a horizontal or vertical barrier or at an angle. It can be free floating or resting on a solid surface. You can form it into a hemispherical dome or a sphere with a radius of up to 10 feet, or you can shape a flat surface made up of ten 10-foot-by-10-foot panels. Each panel must be contiguous with another panel. In any form, the wall is infinitely thin. It lasts for the duration. If the wall cuts through a creature”s space when it appears, the creature takes 5d8 force damage. On a successful Dexterity save, a creature takes half damage.

Anything passing through the wall takes 5d8 force damage, including anything carried. A creature thrown or otherwise moved toward the wall against their will can make a Dexterity save for half damage. Anything reduced to 0 hit points is disintegrated. It is immune to all damage but can be dispelled by a high enough dispel magic. The wall also extends into the Ethereal Plane, blocking ethereal travel through the wall.

2nd Level Conjuration
Casting Time: 1 action
Range: Line of Sight
Components: V, S, M (A small black bell or whistle)
Duration: 1 Hour
Attack/Save: DEX

You create a dark, intangible, and silent servant in the form of any medium or smaller creature you’ve encountered. While the figure can pass through solid objects, it must remain visible to you or the spell ends. The figure can move, fly, and communicate via visible motions without affecting physical objects, acting by your mental command. At any point in the spell duration, the figure can attack one target, who must make a Dexterity saving throw. A creature takes 1d6 force damage on a failed save, or no damage on a successful one. Once the figure attacks, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.

3rd Level Evocation
Casting Time: 1 action
Range: 5 ft.
Components: V, S, M (a small sponge)
Duration: Instantaneous
Attack/Save: Special

You use Oblivion energy to permanently degrade the structural integrity of a single non-magical item up to 50 lb or 50 lb of a larger item. The item turns black for a moment then suddenly feels lighter if carried. The target item must succeed in a save against the material Armor Class or reduce its hit points by half and the material Armor Class by 2. If that object only had 1 hit point or the AC drops below 1, the item crumbles. If the target is armor, the spell reduces the AC benefit of the armor by 2. If the target is a weapon or shield, the item becomes fragile and must save against its material’s Armor Class when struck, noting the reduced AC. If the item succeeds in its save, damage is halved. The Mending cantrip can undo the effect of this spell.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional item or 30 additional lb. of the same item for each slot level above 3rd.

4th level Evocation
Casting Time: 1 Action
Range: Self
Components: V, S, M (An obsidian effigy of the caster valued at 50 GP)
Duration: Concentration, up to 1 Minute

Waves of darkness enclose your body until the spell ends, causing you to become heavily obscured to others. The shadows turn dim light within 10 feet of you into darkness, and bright light in the same area to dim light.

Until the spell ends, you have resistance to radiant damage and immunity to psychic damage. In addition, whenever a creature within 10 feet of you hits you with an attack, the darkness consumes the attacker, dealing it 2d8 force damage.

1st Level Evocation
Casting Time: 1 Action
Range: 30 ft
Components: V
Duration: 1 minute
Attack/Save: DEX

You create a small field of darkness over the target’s eyes or silence over their ears, that blinds or deafens them (your choice) for the duration. Choose one creature that you can see within range.  The target must make a Dexterity saving throw. If it fails, the target is either blinded or deafened. At the end of each of their turns, the target can make a Dexterity saving throw. On a success, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you can target one additional creature for each slot level above 2nd.

Illusion cantrip
Casting Time: 1 action
Range: 30 ft
Components: S, M (a pinch of powdered obsidian)
Duration: 1 minute

You summon a small amount of stationary Oblivion that obliterates light to the degree you choose in one location up to 10 cubic feet. The shape can be porous to create a fog or shadow effect, or completely dark and in any shape you wish. While the entire shape must fill 10 cubic feet, the shape need not be contiguous and as such can form multiple small shapes, words, etc.

Nullimancers have learned the secret art of tapping into and manipulating the all-consuming energy of Oblivion. They can generate it and transform it to a variety of effects, all of which destroy matter or energy in some way. This results in new spells and features, and several existing spells have Nullimancy versions that use Oblivion instead of the Weave.

Nullimancy Conversion

Starting at 2nd level, you learn to manipulate certain existing spells as nullimancy spells. When a nullimancer learns one of these spells, they learn it as a nullimancy spell instead with differences as noted:

1st Level Spells

• Shield Instead of invisible, the shield appears non-reflective black
• Absorb Elements Regardless of the incoming effect, the effect the following round is always force
• Fog Cloud The fog consists of specks of darkness, appearing like soot but otherwise intangible and functions identically to the original spell.
• Grease Instead of a layer of grease, the spell turns the surface black and nearly eliminates friction for the duration, feeling like ice. The material component is a bit of fur from a dog.
• Mage Armor The armor appears pitch black.
• Magic Missile Instead of glowing, the darts are black energy.

2nd Level Spells

• Cloud of Daggers The spinning daggers are black and cause force damage instead of slashing.
• Darkness The material component is a bit of ground obsidian.

3rd Level Spells

• Tiny Hut Only the caster can see through the barrier to the outside.
• Protection from Energy Force damage is another energy option.
• Dispel Magic The target seems to be enveloped with darkness for a split-second as the spell ends.
• Nondetection The material component is 25 gp worth of powdered obsidian instead of diamond dust.

4th Level Spells

• Private Sanctum The barrier also offers the option of resistance from psychic energy.

5th Level Spells

• Modify Memory Remove Curse will not reverse this, because the target’s brain has been permanently modified by the Oblivion energy.

6th Level Spells

• Circle of Death An evocation, it causes force damage instead of necrotic damage.
• Disintegrate The beam is black, not green.
• Globe of Invulnerability The spell also protects against spell-like effects.

7th Level Spells

• Arcane Sword The sword is black and ignores non-magical armor.
• Finger of Death As an evocation, it causes force damage, not necrotic, and instead of producing a zombie, a target killed by this spell is disintegrated per the Disintegration spell.

8th Level Spells

• Antimagic Field Even magic effects created by artifacts and relics cannot function within this field, short of direct intervention by a deity.
• Feeblemind Using Oblivion energy to damage the target’s mind, the target takes force damage, not psychic, but otherwise, the effects are the same.

The Planes of Existence in the Andovir campaign follow the Great Wheel cosmology, including the quasi-elemental inner planes, Feywild/Shadowfell and the Far Realm, and any number of demiplanes, but lacking the Temporal Plane and mirror planes. These planes are inhabited by all manner of corresponding creatures, including beings of great power known in other campaign worlds as gods. In Andovir, these beings are known by some sages, but they generally remain in their own planes and have little influence if any on the Material Plane, preferring to pursue lives on their home planes and interact with the gods of Andovir, whose power far exceeds these other beings.

The exceptions are the fiends and celestials, which take a more active role in the lives of mortals, acting as servants of the gods, though most fiends see themselves as serving the principles of the Twilight Pantheon but not the gods themselves, whereas the celestials gladly bow to the Lords of Light. While most mortals have never seen a fiend nor a celestial, the former constantly seek entrance onto the Material Plane, and the latter come when sent for a specific purpose.

In addition to these planes, two more planes separate the Great Wheel from the Far Realm: the Psychic Plane and Oblivion.

Psychic Plane

The Psychic Plane is the source of intellect, creativity, and the energy that forms the substance of the soul. While only the gods could ever visit this plane without an immediate overload of mental energy and dying or falling into complete irrevocable tortured catatonia, this plane also serves as the source of all psionic ability.

Oblivion

Also known as the Plane of Annihilation or simply the Void, Oblivion is the plane of destruction and negation. Not just emptiness, Oblivion is an actively destructive black energy that obliterates anything that it touches. Certain wizards known as nullimancers have learned to tap into and manipulate the destructive energy, manipulating it to destroy matter or nullify magic or energy, but most nullimancers eventually lose control of the powerful force and destroy themselves. Even so, dark conclaves continue to train wizards in these dangerous arts.