TEXT: Your Hex is on Fire
  S
  ometimes your players are goodly heroes who
  spend their time battling evil and saving lives.
  Other times, they are... not. These epic boons are
  aimed at players who're looking to lay sinister
  curses on their enemies, extending the scope and
  power of their dark magic to epic levels.
  Boon of Anathema
  Prerequisites. Access to the spell hex
  When you use the hex spell to deal additional damage, 
  that damage is increased by 1d6 fire damage. In addition, any
  creature affected by a hex spell that you cast also suffers 
  from the Poisoned condition while under the effects of the
  spell.
  Boon of the Evil Eye
  Prerequisites. Access to the spell bestow curse
  You can now cast bestow curse as a bonus action. When
  you do so, it has a range of 90 feet.
  Boon of Hex Mastery
  Prerequisites. Witch class
  You learn an additional Hex of your choice. You can receive
  this boon multiple times.
  Boon of Ill Fortune
  When a creature you can see rolls a natural 20 on an attack
  roll, saving throw or ability, you can use your reaction to
  change it into a natural 1. Once you have used this ability, 
  you must complete a short rest before you can use it again.
  Boon of the Jinx
  Prerequisites. Access to the spell bane
  You can now cast bane without expending a spell 
  slot. Furthermore, hostile creatures have disadvantage 
  on their saving throws against this spell when you cast 
  it.
  Boon of Profanity
  Prerequisites. Ability to cast at least one spell
  When you speak a curse, you do so in a foul, 
  inscrutable, forgotten language that cannot be understood 
  by any mortal creature. Spells you cast that include a 
  verbal component cannot be counterspelled, nor can they be
  ended early by the spells remove curse or dispel.
  Boon of Torment
  Prerequisites. Witch class
  You gain a second Witch's Curse, in addition to the one you
  were afflicted with at 1st level.
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/5th Edition (5e)/3rd Party/Mage Hand Press/Non-Published/Your Hex Is On Fire.pdf