Path of the Tranquil Rage

Keeping their calm even while channeling their rage seems contradictionary but there are barbarians that accomplish such a feat,
they should not be underestimated.

Serene Rage

Starting when you choose this path at 3rd level, you gain the ability to stay calm when raging and channel the rage into yourself like a pond.

• If you have the ability to cast spells, you can cast 1st level and cantrip spells, during rage, and concentrate on them.
• While raging, you roll an extra 1d6 against being frightened and charmed.
• Serene Rage: when you make a melee weapon attack using Dexterity, you receive the rage bonus.

Deep Pond

Beginning at 6th level, your inner pond of rage, reached a depth, where it can absorb the force of attacks.

• While raging, gain unlimited attacks of opportunity.
• Absorption: Using your reaction, you can absorb receiving damage.
  • This only works against piercing, slashing and bludgeoning damage.
  •  Reduce damage taken, by your class level.
  • Maximum charges are 2, resets on short and long rest.

Reverberate

Starting at 10th level, your rage is able to reach beyond your own mind. Every time an enemy strikes, they will feel your intense rage, surge into their mind.

• Improved Absorption: It can be used against psychic damage, and the next creature attacking you, takes the absorbed damage.
• While raging, enemies attacking you, take 1d6 psychic damage in the form of intense rage.
• Reverberate: using your action, you can channel your rage, to overwhelm nearby creatures with it.
  • Maximum concentration of 1 minute.
  • All creatures entering or starting their turn within a 10ft. radius, are forced to make a DC 8 + proficiency bonus + constitution modifier intelligence saving throw.
  • On fail, they take 1d6 psychic damage and have disadvantage on attacks for 1 round.
  • On success, they take half damage.
  • While inside the range, enemy creatures have disadvantage concentrating on spells.
  • Maximum charges are 2, resets on long rest.

Harmony

Beginning at 14th level, you managed to reach a perfect harmony with your inner rage.

• Reduce all damage taken by 1d6.
• Tempered Mind: you have advantage maintaining concentration on Reverberate.
• The Red Flood: using your action, you flood the area in front of you with a metaphysical red Wave.
  
  • Within a 40ft. cone, every creature needs to make a DC 18 constitution saving throw.
  • On fail, they take 3d8 psychic damage, are knocked back to the end of the cone, and prone.
  • On success, they take half the damage.
  • Maximum charges are 2, resets on long rest.