1st-level enchantment
Casting Time: 1 bonus action
Range: 90 feet
Components: V, S, M (the petrified eye of a newt)
Duration: Concentration, up to 1 hour

You place a curse on a creature that you can see within range. Until the spell ends, you deal an extra 1d6 necrotic damage to the target whenever you hit it with an attack. Also, choose one ability when you cast the spell. The target has disadvantage on ability checks made with the chosen ability.

If the target drops to 0 hit points before this spell ends, you can use a bonus action on a subsequent turn of yours to curse a new creature.

A remove curse cast on the target ends this spell early.

At Higher Levels. 

When you cast this spell using a spell slot of 3rd or 4th level, you can maintain your concentration on the spell for up to 8 hours. When you use a spell slot of 5th level or higher, you can maintain your concentration on the spell for up to 24 hours.

Level 11: Mystic Arcanum

Casting Time: Action
Range: 150 feet
Components: V, S, M (the powder of a crushed black pearl worth 500+ GP)
Duration: Instantaneous
Negative energy ripples out in a 60-foot-radius Sphere from a point you choose within range. Each creature in that area makes a Constitution saving throw, taking 8d8 Necrotic damage on a failed save or half as much damage on a successful one.

Using a Higher-Level Spell Slot. The damage increases by 2d8 for each spell slot level above 6.

Casting Time: Action
Range: 60 feet
Components: V, S, M (a vial of blood from a humanoid killed within the past 24 hours)
Duration: Concentration, up to 1 hour
You utter foul words, summoning one demon from the chaos of the Abyss. You choose the demon's type, which must be one of challenge rating 5 or lower, such as a shadow demon or a barlgura. The demon appears in an unoccupied space you can see within range, and the demon disappears when it drops to 0 hit points or when the spell ends.

Roll initiative for the demon, which has its own turns. When you summon it and on each of your turns thereafter, you can issue a verbal command to it (requiring no action on your part), telling it what it must do on its next turn. If you issue no command, it spends its turn attacking any creature within reach that has attacked it.

At the end of each of the demon's turns, it makes a Charisma saving throw. The demon has disadvantage on this saving throw if you say its true name. On a failed save, the demon continues to obey you. On a successful save, your control of the demon ends for the rest of the duration, and the demon spends its turns pursuing and attacking the nearest non-demons to the best of its ability. If you stop concentrating on the spell before it reaches its full duration, an uncontrolled demon doesn't disappear for 1d6 rounds if it still has hit points.

As part of casting the spell, you can form a circle on the ground with the blood used as a material component. The circle is large enough to encompass your space. While the spell lasts, the summoned demon can't cross the circle or harm it, and it can't target anyone within it. Using the material component in this manner consumes it when the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the challenge rating increases by 1 for each slot level above 4th.

Casting Time: Reaction, which you take when you see a creature within 60 feet of yourself casting a spell with Verbal, Somatic, or Material components

Range: 60 feet
Duration: Instantaneous

You attempt to interrupt a creature in the process of casting a spell. The creature makes a Constitution saving throw. On a failed save, the spell dissipates with no effect, and the action, Bonus Action, or Reaction used to cast it is wasted. If that spell was cast with a spell slot, the slot isn't expended.

1st-level evocation
Casting Time: 1 action
Range: 120 feet
Components: V, S
Duration: Instantaneous
You create three glowing darts of magical force. Each dart hits a creature of your choice that you can see within range. A dart deals 1d4 + 1 force damage to its target. The darts all strike simultaneously, and you can direct them to hit one creature or several.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the spell creates one more dart for each slot level above 1st.

1st-level abjuration
Casting Time: 1 action
Range: Self
Components: V, S, M (a cup of water)
Duration: 1 hour

A protective magical force surrounds you, manifesting as a spectral frost that covers you and your gear. You gain 5 temporary hit points for the duration. If a creature hits you with a melee attack while you have these hit points, the creature takes 5 cold damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, both the temporary hit points and the cold damage increase by 5 for each slot level above 1st.

2nd-level enchantment
Casting Time: 1 action
Range: 60 feet
Components: V, S, M (a small, straight piece of iron)
Duration: Concentration, up to 1 minute

Choose a humanoid that you can see within range. The target must succeed on a Wisdom saving throw or be paralyzed for the duration. At the end of each of its turns, the target can make another Wisdom saving throw. On a success, the spell ends on the target.

At Higher Levels. 

When you cast this spell using a spell slot of 3rd level or higher, you can target one additional humanoid for each slot level above 2nd. The humanoids must be within 30 feet of each other when you target them.

2nd-level conjuration
Casting Time: 1 bonus action
Range: Self
Components: V
Duration: Instantaneous

Briefly surrounded by silvery mist, you teleport up to 30 feet to an unoccupied space that you can see.

2nd-level evocation
Casting Time: 1 action
Range: 60 feet
Components: V, S, M (a chip of mica)
Duration: Instantaneous

A sudden loud ringing noise, painfully intense, erupts from a point of your choice within range. Each creature in a 10-foot-radius sphere centered on that point must make a Constitution saving throw. A creature takes 3d8 thunder damage on a failed save, or half as much damage on a successful one. A creature made of inorganic material such as stone, crystal, or metal has disadvantage on this saving throw.

A nonmagical object that isn't being worn or carried also takes the damage if it's in the spell's area.

At Higher Levels. 

When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.

2nd-level illusion
Casting Time: 1 bonus action
Range: Self
Components: V, S
Duration: Concentration, up to 1 minute

You weave together threads of shadow to create a sword of solidified gloom in your hand. This magic sword lasts until the spell ends. It counts as a simple melee weapon with which you are proficient. It deals 2d8 psychic damage on a hit and has the finesse, light, and thrown properties (range 20/60). In addition, when you use the sword to attack a target that is in dim light or darkness, you make the attack roll with advantage.

If you drop the weapon or throw it, it dissipates at the end of the turn. Thereafter, while the spell persists, you can use a bonus action to cause the sword to reappear in your hand.

At Higher Levels. 

When you cast this spell using a 3rd- or 4th-level spell slot, the damage increases to 3d8. When you cast it using a 5th- or 6th-level spell slot, the damage increases to 4d8. When you cast it using a spell slot of 7th level or higher, the damage increases to 5d8.

Casting Time: 1 action
Range: 150 feet
Components: V, S, M (a tiny ball of bat guano and sulfur)
Duration: Instantaneous
A bright streak flashes from your pointing finger to a point you choose within range and then blossoms with a low roar into an explosion of flame. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 8d6 fire damage on a failed save, or half as much damage on a successful one.

The fire spreads around corners. It ignites flammable objects in the area that aren't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.

1st-level evocation
Casting Time: 1 action
Range: Self (15-foot cone)
Components: V, S
Duration: Instantaneous
As you hold your hands with thumbs touching and fingers spread, a thin sheet of flames shoots forth from your outstretched fingertips. Each creature in a 15-foot cone must make a Dexterity saving throw. A creature takes 3d6 fire damage on a failed save, or half as much damage on a successful one.

The fire ignites any flammable objects in the area that aren't being worn or carried.

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

2nd-level evocation
Casting Time: 1 action
Range: 120 feet
Components: V, S
Duration: Instantaneous
You create three rays of fire and hurl them at targets within range. You can hurl them at one target or several.

Make a ranged spell attack for each ray. On a hit, the target takes 2d6 fire damage.

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

1st-level evocation
Casting Time: 1 reaction, which you take in response to being damaged by a creature within 60 feet of you that you can see
Range: 60 feet
Components: V, S
Duration: Instantaneous
You point your finger, and the creature that damaged you is momentarily surrounded by hellish flames. The creature must make a Dexterity saving throw. It takes 2d10 fire damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st.