College of Sea Song

You can use your voice to entertain and manipulate people to your will. You have a song within your soul that is connected to the sea. You have a longing to go there one day. You have a call unique to you, that can do so many things. 

Siren Call

Starting at 3rd level you can expend one use of your bardic inspirations to do one of three things:

Scream: You let out an earsplitting shriek which causes everyone within 30ft of you to become frightened making them under the fear condition. 
Serene Song: You sing a soft calming song and one person within 30ft becomes charmed, as if under the charm person spell.

Song of Strength: You sing a powerful song that empowers an ally. They can add 2d6 psychic damage to the next attack they make. You may also use this on yourself

 

Sea Legs

At level 6 you grow gills that allow you to breath underwater and gain a swim speed of 35ft. 
You also know the spell Water Walk and Tidal wave which become bard spells to you. 

Call of the Sea

At level 14 your call improves:

Scream: Your scream can now do 7d6 psychic damage to the people within the radius given above. 
Serene Song: Your song can now give up to 5 of your allies 5d8 hit points back.

Song of Strength: Your song can reach up to three different allies. They can add 4d6 psychic damage to the next attack they make.