TEXT: 1
  hough a warlock’s patron can sometimes be 
  demanding or restrictive with their powers, 
  many patrons acknowledge the need for 
  their warlocks to be more flexible in serv-
  ing a patron’s grim purposes. The follow-
  ing options allow a warlock more versatility with their 
  spellcasting.
  Additional Pact Boon
  At 3rd level, a warlock chooses one benefit from the 
  Pact Boon feature, representing the nature of the bond 
  that warlock has formed with its patron. The following 
  additional option can be chosen instead of the other 
  Pact Boons available in the Player’s Handbook and 
  similar sources.
  Pact of Mana
  You gain a mana receptacle, a tiny object held in one 
  hand that acts as a spellcasting focus for you, and which 
  holds the potent magics of your patron. Choose or roll a 
  receptacle from the following list, or design one yourself 
  with help from your DM.
   If you are ever separated from your receptacle, you 
  can conjure it into your grasp using an action. If your 
  receptacle is destroyed, you can undertake a one 
  hour long ritual to request a replacement from your 
  patron, which may be identical or of a different type. 
  At the ritual’s completion, the new receptacle appears 
  in your grasp.
  1d12
  Receptacle
  1
  A strand of unicorn hair braided into a bracelet
  2
  An hourglass adorned with a smiling death’s head
  3
  A set of manacles forged with infernal runes
  4
  A crystal sphere with a large, glowing eye at its center
  5
  A ticking pocketwatch that accurately tells the time on 
  another plane
  6
  A withered, mummified hand
  7
  A beautiful jewel that changes shape subtly when no one 
  is looking
  8
  A scrolled and sealed copy of your contract
  9
  An ancient lantern glowing with an unearthly light
  10
  A grinning skull, inset with gems
  11
  A broken or defiled holy symbol
  12
  An ornate key that won’t fit any door you’ve found
  When you choose this pact boon, you no longer have 
  spell slots. Instead, you gain a number of mana points 
  equal to your warlock level, as found on the Mana Poten-
  cy table. These mana points refresh whenever you finish 
  a short or long rest, and otherwise act as your spell slots 
  normally would.
  Mana Potency
  Using these points, when you want to cast a spell, you 
  can purchase a slot of an appropriate spell level using 
  the values on the Mana Cost table as part of the casting 
  of the spell. The Mana Potency table also tells you the 
  maximum slot level you are able to purchase, at specific 
  warlock levels.
  Mana cost
  Spell Level
  Mana Point Cost
  1st
  2
  2nd
  3
  3rd
  5
  4th
  6
  5th
  7
  Warlock: Pact of Mana
  T
  Warlock 
  Level
  Mana 
  Points
  Maximum 
  Slot Level
  3rd
  6
  2nd
  4th
  6
  2nd
  5th
  10
  3rd
  6th
  10
  3rd
  7th
  12
  4th
  8th
  12
  4th
  9th
  14
  5th
  10th
  14
  5th
  11th
  21
  5th
  Warlock 
  Level
  Mana 
  Points
  Maximum 
  Slot Level
  12th
  21
  5th
  13th
  21
  5th
  14th
  21
  5th
  15th
  21
  5th
  16th
  21
  5th
  17th
  28
  5th
  18th
  28
  5th
  19th
  28
  5th
  20th
  28
  5th
  okalinichenko
  
  2
  Additional Invocations
  At 2nd level, a warlock gains the Eldritch Invo-
  cations feature. Here are new options for that 
  feature, in addition to the options in the Player’s 
  Handbook and similar sources.
   If an eldritch invocation has a prerequisite, 
  you must meet it to learn the invocation. You 
  can learn the invocation at the same time that 
  you meet its prerequisite. A level prerequisite 
  refers to your level in this class.
  Arcane Sustenance
  Prerequisite: Pact of Mana feature
  When you would spend hit dice to heal during 
  a rest, you can expend 2 points of mana once 
  each rest to gain another warlock hit die on the 
  roll. If that additional die rolls 3 or below, you 
  can choose to reroll it, but you must use the 
  result of the second roll.
  Eldritch Bargain
  Prerequisite: 5th level, Pact of Mana feature
  You can offer up additional mana in order to 
  cast a spell of your choice from the warlock 
  spell list that you don’t know. This cost is 
  1 additional mana for a spell of 1st or 2nd 
  level, or 2 additional mana for a spell of 3rd 
  through 5th level.
  Mana Dilettante
  Prerequisite: Pact of Mana feature
  Choose one class other than warlock that has 
  cantrips on its class spell list. You can cast one 
  cantrip belonging to that class (that you don’t 
  already know) by spending 1 mana when you 
  cast the spell. Cast in that way, the spell is a 
  warlock spell for you.
  Dmitriy
  credits:
  Thanks once again to our patrons!
  Photoshop & design by Walrock Homebrew
  Visit Walrock Homebrew for more!
  • Blog: walrock-homebrew.blogspot.com
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  Art Credits:
  • Dmitriy and Okalinichenko
  Thanks to the kind folks of the Discord of Many Things, to /u/
  Smyris for their resource pack, and to /u/skybug12 for their 
  Photoshop guide!
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/5th Edition (5e)/3rd Party/Walrock Homebrew/Pact of Mana - Walrock Homebrew Blog.pdf