Last Raven

The Last Raven thieves’ guild consists of many arcane trickster rogues and eldritch knight fighters, but their most unique members are darkly referred to as wizards who study the ‘school of ravencraft.’ Learning secrets of witches and other occultists, these wizards specialize in stealing magic and levying curses on their foes. You might be a current member of the guild, or could have learned their arcane secrets and left the group, which likely left you marked as their enemy.

Ravencraft

When you take this arcane tradition at 2nd level, you gain proficiency in thieves’ tools and two of the following skills: Deception, Intimidation, Sleight of Hand, or Stealth. You add hex from the warlock spell list to your spellbook.

You can cast hex one time without expending a spell slot. It is automatically heightened to the highest level you can cast. Afterward, you cannot do so again until you complete a long rest .

Whenever you cast hex , instead of having the target take extra damage when you hit it with an attack, you may choose an ally, and instead the target takes the extra damage whenever that ally hits that target.

Spellthief

At 2nd level, you learn how to steal the magic of other spellcasters. You can prepare one extra spell, and you need not change this spell when you finish a long rest . 

Whenever you end a short or a long rest, you can choose a creature within 60 feet that you are aware of, even through solid barriers; you gain knowledge of all spells the creature has available or currently expended, and you can replace your one extra spell with one of those spells. Whenever a spellcaster within 60 feet of you casts a spell, loses concentration on a spell, or has their spell countered or dispelled, you can replace your one extra spell with that spell.

Cauldron of Curses

At 6th level, your curses tap into the lingering malevolence of Cauldron Hill. If you do not already know the spell bestow curse , add it to your spell book. If you do, add another 3rd level spell. When you cast bestow curse, the spell runs its full duration without requiring concentration .

Retaliatory Curse

At 10th level, your magic is as vindictive as your guild leader. When an attack hits you or a spell affects you, you can use a reaction to cast bestow curse without using a spell slot on the person who attacked you or cast the spell, regardless of range or line of sight. If you were incapacitated by the attack or spell, the target of your curse has disadvantage on their saving throw. 

After you use this ability, you cannot use it again until you complete a short or long rest.

Exceptional Spellthievery

At 14th level, you’re able to steal magic from enchanted items and ongoing spells. You can use a bonus action to choose a non-artifact magic item or creature affected by an ongoing spell within 60 feet. The properties of an unattended magic item are transferred to an item you are carrying. If the magic item is held by a creature, it makes an Intelligence saving throw to resist this effect. When choosing a spell on a creature, the creature makes an Intelligence saving throw, and on a failure you transfer that spell to yourself. The transfer lasts for ten minutes (or earlier if a spell’s duration expires before that). 

After you use this feature, you cannot use it again until you finish a short or long rest .