TEXT: WAR DRUMMER
  A MUSICAL SUBCLASS FOR BARBARIANS
  BY KAI LINDER
  
  INTRODUCTION
  War drummers are barbarians that magically channel
  their rage through the heavy war drums they carry.
  They set up these drums in the midst of battles and
  stand strong, beating out powerful rhythms like rolling
  thunder that help them influence the flow of combat,
  pushing allies into a furor and intimidating enemies.
  WAR DRUM
  At 3rd level, you build and ritually bond with your war
  drum, making it an outlet for your rage that can be
  summoned. You gain proficiency with drums.
  Your war drum is magically stored within you, and you
  can summon it in an unoccupied space within 5 feet of
  you as an action, or when you enter your rage. It can be
  magically stored again as an action. You can use a
  bonus action to lift and carry the drum, and a free
  action to set it back down. While carrying it, your
  move speed is halved and the drum can’t be used.
  The drum is a Medium object with AC 15, hit points
  equal to half your hit points (rounded up), a damage
  threshold of 5, immunity to poison and psychic
  damage, and resistance to bludgeoning and thunder
  damage. It weighs 200lbs. You can play the drum with
  unarmed strikes or bludgeoning weapons while you’re
  within melee reach and not incapacitated or restrained.
  You must be raging to create any effects using the
  drum, otherwise it produces mundane musical beats.
  The drum is audible out to 100 feet.
  Your War Drummer save DC equals 8 + your
  proficiency bonus + your Strength modifier.
  If your war drum is destroyed, you can conduct a ritual
  over the course of a long rest to call its pieces back to
  you, reconstructing them.
  Finally, your war drum becomes tougher as your bond
  improves. The drum gain resistance to all damage at 6th
  level, and immunity to all damage at 14th level.
  RHYTHM OF AGGRESSION
  Also at 3rd level, you learn to channel your rage into an
  aggressive rhythm. You can use a bonus action to beat a
  rhythm on your drum, creating a magical aura that lasts
  until the end of your next turn. The aura ends early if
  you move out of reach of the drum or are incapacitated
  or restrained. The aura extends 30 feet from the drum
  in every direction, ignoring cover. Friendly creatures
  in the aura increase their move speed by 5 feet, and
  once on each turn can add your Rage Damage bonus to
  any damage they deal with spells or weapon attacks.
  Hostile creatures in the aura reduce their move speed
  by 5 feet. Creatures who cannot hear the drum are
  unaffected.
  Your rage doesn’t end early if you have used this
  feature this turn.
  THUNDEROUS BOOM
  Starting at 6th level, you can use an action to strike the
  war drum with such force that it emits a damaging
  shockwave. Hostile creatures within 30 feet of the
  drum must succeed on a Constitution saving throw or
  take thunder damage equal to 1d12 + Rage Damage
  bonus and be knocked prone. On a success they take
  half damage and are not knocked prone. The boom is
  audible out to 200 feet.
  EXPLOSIVE RHYTHM
  At 10th level, whenever a friendly creature in your
  Rhythm of Aggression aura rolls the highest result on a
  damage die, they can roll that die again and add the
  results together.
  For example, if a player rolls an 8 on a d8, they then
  roll that die again, getting a 5. The total damage would
  be 13 plus any other modifiers.
  THE BIG BEAT
  When you reach 14th level, your rage has become so
  strong that you can use your war drum as a weapon.
  Once per rage, as an action you can grab the war drum
  and use it to make a melee weapon attack against a
  creature in range. On a hit, the target takes 3d12
  bludgeoning damage and 3d12 thunder damage, and
  must succeed on a Strength saving throw or be stunned
  until the end of their next turn. The drum is then set
  on in an unoccupied space within 5 feet of you.
  CREDITS
  Cover Art: Kredinca (Twitter: @Lost_Krendel)
  Cover Layout: Bethany Bracken
  (Twitter: @BethanyDnD)
  PRIMAL PATH: PATH OF THE WAR DRUMMER
  BOOM boom boom... The goblin stares as a tiefling woman in
  ragged leathers beats furiously on a drum, the other adventurers
  fighting to her rhythm. BOOM BOOM... The heavy beats thump
  in his frightened chest. With a primal roar the tiefling slams
  the drum, knocking a group of bugbears to the ground with a
  wave of thunder. DOOM. DOOM. DOOM... and the goblin flees.
  DUNGEONS & DRAGONS, D&D, Wizards of the Coast, Forgotten Realms, Ravenloft, Eberron, the dragon ampersand, Ravnica and all other Wizards of the Coast product names, and
  their respective logos are trademarks of Wizards of the Coast in the USA and other countries. This work contains material that is copyright Wizards of the Coast and/or other authors. Such
  material is used with permission under the Community Content Agreement for Dungeon Masters Guild. All other original material in this work is copyright 2018�2019 by Creator Name and
  published under the Community Content Agreement for Dungeon Masters Guild.
  SOUNDS OF THE WAR DRUMMER
  The war drum is similar to a modern orchestral bass drum.
  For examples of war drum sounds check out:
  Earth Shaker Drums: https://bit.ly/3bpQ3q2
  Drumline Battle: https://bit.ly/3hZa1uh
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/5th Edition (5e)/3rd Party/DMsGuild/Musical Subclasses - Path of the War Drummer.pdf