You have manifested some of the power of the awe inspiring and mysterious Elohi, granting you a broad array of potential benefits.
When you are Bloodied and regain Hit Points from a level 1+ spell, or by expending Hit Dice, you regain additional Hit Points equal to your Proficiency Bonus.
As a Bonus Action, you can touch a simple, martial, or natural weapon and infuse it with one of the following damage types: Acid, Cold, Fire, Lightning, or Poison. For the next minute, the weapon or Unarmed Strike deals an extra 1d4 damage of the chosen type when it hits. After you use this Bonus Action, you cannot do so again until you finish a Long Rest or expend one Hit Die to recharge this feature (no action required).
Once on each of your turns, when you use your Weapon Mastery on a creature, you can deal Force damage equal to your Proficiency Bonus.
The ranges of your special senses, such as Darkvision, Truesight, the ability to sense magic through the Detect Magic spell, a Paladin's Divine Sense, and other similar effects are increased by 30 feet. If any of your special senses has a range of less than 30 feet, its range is doubled instead.
When a creature uses their Heroic Inspiration and you do not have one, gain a Heroic Inspiration. Once you this feature, you cannot do so again until you finish a Long Rest.
You can manifest protective energy that can shield you or others. When you or another creature you can see within 5 feet of you is hit by an attack roll, you can take a Reaction to manifest spectral energy for a moment. You grant a bonus to the target's AC equal to your Proficiency Bonus against that attack roll, potentially causing it to miss. You can do this a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a Long Rest.
When you take Acid, Cold, Fire, Lightning, or Poison damage, you can take a Reaction to give yourself Resistance to that instance of damage. You can do this a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a Long Rest.
Once on your turn, when you score a Critical Hit or reduce a creature to 0 Hit Points, you can immediately let out a powerful roar. A number of creatures of your choice equal to your Proficiency Bonus within 30 feet of you that can hear you take Force damage equal to twice your Proficiency Bonus. Each creature can only take damage from any Sundering Roar once per turn.