The Maestro

The Maestro is a powerful Bard once human, now ascended, who travels the Planes of Existence humoring themself with those he comes in contact with. The Maestro was a conductor for various symphonies within the plane of existence. The Maestro's motive as they rummage through the Planes is to simply bring music and rhythm to the lives he has the ability to touch. Allowing the Maestro to flow their power through you, binds your magic to theirs and with each cast of a spell, a small orchestra is consistently played signifying The Maestro's eternal love and journey for music.

Expanded Spell List

The Maestro lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Maestro Expanded Spells

Spell Level	Spells
1st	thunderwave, sleep
2nd	blindness/deafness, shatter
3rd	glyph of warding, blink
4th	phantasmal killer, compulsion
5th	animate objects, hold monster

Maestro's Furious Rhythm

Starting at 1st level, when you cast a spell that deals thunder or psychic damage, the Maestro unleashes a barrage of symphonic music dealing an additional 1d4 damage of the damaging type, to one target creature the spell hit. 

You may use this feature a number of times equal to your proficiency bonus and is regained after a short or long rest.

You also gain expertise in performance.

At Higher Levels. This feature's damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (5d4).

Maestro's Fever Step

Starting at 6th level, you can call on your patron to perform a concert conducted from another plane of existence. Creatures within 50 ft. of you begin to hear an orchestra of music causing them to go into a mad dance where they are standing. Each creature must succeed on a Wisdom saving throw or be thrusted into a dance becoming charmed and incapacitated for 1 minute. A creature with an intelligence of 4 or less isn't affected. 

At the end of each of its turns, and each time it takes damage, the target can make another Wisdom saving throw. The target has advantage on the saving throw if it’s triggered by damage. On a success, the spell ends.

Once you use this feature, you can’t use it again until you finish a long rest.

Maestro's Dress Rehearsal

Starting at 10th level, when you deal thunder or psychic damage, you can reroll any of the damage dice but you must use the new numbers rolled. 
You can use this feature a number of times equal to your Charisma modifier and is regained after a short or long rest.

The Maestro's Masterpiece

Starting at 14th level, when you hit a creature with an attack, you can use this feature to summon an ethereal form of your patron immediately in front of a target creature you hit. Your patron surrounds the creature in a magical bubble that is inescapable, impenetrable, and silences all forms of magic. At the start of the creature's turn, they must take 3d10 psychic damage and 3d10 thunder damage. The creature can escape the magical bubble by succeeding on a Strength saving throw to burst its way through.

While your patron is summoned, you are concentrating as if you are concentrating on a spell.

Once you use this feature, you can’t use it again until you finish a long rest.