Cae (Syranian Form)

Entwined Existence. Your symbiote is a separate entity with its own physical form bound to yours. It isn't a separate creature and relies on you to survive. It has Intelligence, Wisdom, and Charisma scores. The symbiote can see and hear using your senses. If you die, so does your symbiote. If you are subsequently returned to life, your symbiote revives as well. 

Sustained Symbiosis. Your symbiote has a vested interest in your survival and takes steps to ensure it. When you fail a saving throw, you can choose to have your symbiote expend one of your Hit Dice to roll it and add the number rolled to the saving throw, potentially turning the failure into a success. If it uses this feature on a death saving throw, you succeed on the save and regain 1 hit point regardless of the number rolled on the d20. Once you succeed on a saving throw due to this trait, the symbiote can't use it again until you finish a long rest.

Spellcasting. Cae’s spellcasting ability is Charisma (spell save DC 13, +5 to hit with spell attacks). He has the following bard spells prepared:

Cantrips (at will): friends, mage hand, thunderclap

1st level (4 slots): charm person, cure wounds, healing word, sleep, 

2nd level (3 slots): enthrall, calm emotions

Song of Rest. Cae can perform a song while taking a short rest. Any ally who hears the song regains an extra 1d6 hit points if it spends any Hit Dice to regain hit points at the end of that rest. Cae can confer this benefit on himself as well.

Symbiotic Agenda. Your symbiote has an agenda that drives it, and it expects you to assist it in achieving those goals. How permissive or patient it is in resolving its agenda depends on its personality. If you have an opportunity to advance its agenda and don't act on it, the symbiote can try to force your hand. You must succeed on a Charisma saving throw (DC 12 + the symbiote's Charisma modifier) or be charmed by the symbiote for 1d12 hours. While charmed, you must try to follow the symbiote's commands. If you take damage that is not self-inflicted, you can repeat the saving throw, ending the effect on a success.

Bardic Inspiration (6/Day). Choose one creature other than yourself within 60 feet of you who can hear you. That creature gains one Bardic Inspiration die, a d6.

Once within the next 10 minutes, the creature can roll the die and add the number rolled to one ability check, attack roll, or saving throw it makes. The creature can wait until after it rolls the d20 before deciding to use the Bardic Inspiration die, but must decide before the DM says whether the roll succeeds or fails. Once the Bardic Inspiration die is rolled, it is lost. A creature can have only one Bardic Inspiration die at a time.