You can spend a Bardic Inspiration die to regain one expended spell slot of level 2 or lower. You can also use a Bonus Action to expend a Bardic Inspiration die and regain one use of Bardic Inspiration.

You can use a Bonus Action to expend one use of Bardic Inspiration and summon a Spectral Broadcaster in an unoccupied space you can see within 60 feet. The Small, intangible spirit lasts for 10 minutes, until reduced to 0 hit points, or until you dismiss it. It has AC 15, hit points equal to five times your Bard level, a flying speed of 30 feet, immunity to poison and psychic damage, and resistance to bludgeoning, piercing, and slashing damage. It cannot manipulate objects or make attacks. As a Bonus Action, you can command it to emit a spectral transmission, producing a subclass effect determined by your Bardic Inspiration die. The Broadcaster uses your Bard spell save DC and spell attack modifier.

You can use a Bonus Action to expend one use of Bardic Inspiration and teleport the Spectral Broadcaster to an unoccupied space you can see within 60 feet. When it arrives, you can choose a number of creatures equal to your Charisma modifier within 10 feet of it. Allies can gain Temporary Hit Points equal to your Bardic Inspiration die, while enemies must succeed on a Wisdom saving throw or have their speed halved until the start of your next turn.

You can use a Bonus Action to expend one use of Bardic Inspiration and grant yourself or an ally within 60 feet a d12. The chosen creature can add the die to its Armor Class against one attack that would hit it, potentially causing the attack to miss. The die is expended after the attack is resolved.

You gain the ability to subtly alter reality through song, speech, and signal. When you cast a Bard spell with a casting time of 1 Action, you can cast it as a Bonus Action once per turn. You can use this feature a number of times equal to your Charisma modifier, regaining all uses when you finish a Long Rest.

You learn to seize hostile transmissions. When a creature you can see within 60 feet succeeds on a saving throw against one of your Bard spells or uses Legendary Resistance to succeed, you can use your Reaction and expend one Bardic Inspiration die to force the creature to reroll the saving throw. It must use the new roll. If the creature fails, it is also unable to take Reactions until the start of your next turn.

The Spectral Broadcaster emits a pulse of ghostly interference. One creature within 30 feet must make a Wisdom saving throw or be unable to take Reactions until the start of Elaris's next turn.

Elaris routes a stabilizing signal through an ally, granting Temporary Hit Points and allowing the ally to add a Bardic Inspiration die to a saving throw.

A burst of spectral static fractures an enemy's concentration and disrupts its next movement.

Elaris sends a wide-area transmission that reinforces allies and muffles hostile magic.

You can use musical instruments or your voice as a spellcasting focus for your Bard spells. You know four Bard cantrips and have access to the Bard spell list. Charisma is your spellcasting ability.

You can inspire others through stirring words or music. You have six uses of Bardic Inspiration, regained after a Long Rest, and one use can be regained when you finish a Short Rest. The die is a d12 at this level. A creature can expend the die to add it to an ability check, attack roll, or saving throw after seeing the d20 roll but before knowing the result.

You can add half your Proficiency Bonus, rounded up, to any ability check you make that uses a skill or tool proficiency you lack.

You gain Expertise in two skills or tools with which you are proficient. You gain Expertise in two additional proficiencies at level 10.

You gain proficiency with Tinker's Tools and one additional skill chosen from Arcana, Investigation, Perception, or Religion. You can use a musical instrument, Tinker's Tools, or a functioning transmitter as a spellcasting focus for your Bard spells and College of Dead Air features.

Whenever you give a creature a Bardic Inspiration die, you can also broadcast one effect to that creature. Signal Mend grants Temporary Hit Points equal to your Charisma modifier. Clear Channel lets the creature immediately end the Charmed or Frightened condition on itself. Coordinated Pulse lets the creature move up to 10 feet without provoking Opportunity Attacks.

You gain Expertise in two additional skills or tools with which you are proficient. Your Bardic Inspiration die now refreshes on a Short or Long Rest, and you regain all expended uses when you finish either rest.

When you or an ally within 60 feet rolls a Bardic Inspiration die, the creature can roll the die twice and use either result. Once a creature benefits from this feature, it cannot do so again until it finishes a Short or Long Rest.

If you roll Initiative and have no uses of Bardic Inspiration remaining, you regain four uses.

You have devoted yourself to the service of a deity, pantheon, or sacred philosophy. You can perform the expected religious rites of your tradition and receive free healing and care at temples or shrines of your faith, though you must provide any material components required for spells. Clerics and other religious servants recognize your authority within your tradition.