College of Dreams

It is said that Satyrs gave adventurers the technique required to control the distilled power of the Feywild, which takes the form of a pink, ethereal mist. The interested bard needs certain requisites to properly master this study, namely, an specific conection with a Fey is certainly helpful, but the most important thing is a pure chaotic personality; as often the creatures of Fey origin are incredibly unpredictable.

As the pure essence of dreams is often beneficial in the human body, their inspiration is improved with healing properties and renewal of uses thanks to the chaotic nature that dreams (and nightmares) often have. A bard that doesn't properly regulates their inspiration is said to go insane after a prolonged time.

Summer Court's Feast

By inspiration from the tales about the famous Summer Court, your inspiration die is even more beneficial.

At level 3, you can use a Bardic Inspiration as a reaction and add the result to your concentration checks. Aditionally, any target that receives your inspiration heals for an amount equal to half your maximum level (rounded down).

Pixies' Mantle

You can turn the essence of the Feywild into a substance similar only to the pixies dust. At 3rd level, you can cast Invisibility without expending a spell slot and it doesn't count against your known spells. You can only use this feature once per long rest.
You also gain bonus damage to your Bard spells equal to your Charisma modifier, this damage is considered psychic.

Summer Court's Waltz

At level 6, you become a great vessel of the rythm and grace which accompanies a waltz worthy to the Archfey. When you use your Countercharm feature, the creatures affected by it (including you) are immune to being charmed or frightened

Aditionally, when the friendly creatures affected by your Countercharm take the Attack action in their turn, they can make an extra single attack.

Summer Court's Royal Chambers

At level 14, you can conjure a soothing essence straight out of the realm of the dreams and mold it into a comfortable mansion of your choice and making, once per day, you can cast Magnificent Mansion without expending material components and without expending a spell slot. All creatures that finish a long rest inside the mansion gain a bonus to their Hit Point maximum equal to your total level during 8 hours.