Prince Rubeus Stella Equestria

"I know Death can be scary for everyone, but in reality, it is no different than the changes we face everyday. The first step to realizing this is learning when to let go... and learning when to laugh."

- Bossa Nova Heartstrings

Prince Rubeus Stella Equestria, born Bossa Nova Heartstrings (his entry here) is the older identical twin brother of Prince Caerulus Melodia Equestria, and a member of the Trimortidae, a group containing the biological and adoptive children of the Three Deaths.

Appearance
Due to being identical twins, Bossa looks completely identical to Blue, his younger brother, save for a few differences. Pre-Ascension, he was an incredibly handsome unicorn stallion with a bright yellow-orange pelt, a dark red mane and tail, and a Cutie Mark depicting red, skull-shaped electric guitar, representing his status as a psychopomp and his talent/passion for music. Like Blue, he usually appears as a Greaser, styling his mane into a pompadour and wearing a black leather jacket. Bossa's strong resemblance to Blue has caused people to mistake him for his brother, leading to rumors that Blue is secretly a Death god, something that Bossa finds hilarious. People have also commented that Bossa is a "redder" version of Blue.

Post-Ascension, Bossa became a handsome Alicorn god with a longer horn and great wings with a dark red gradient. His mane and tail became composed of dark red energy soundwaves with bright orange musical bars and notes running through them. Height-wise, he's as tall as Blue in his true form. His Cutie Mark changed after Ascending to godhood, being flanked by two black wings and surrounded by a halo made of music notes. He does have Alicorn barding in the form of dark red regalia/armor, but prefers to wear casual clothing to make it easier for people to accept and trust him more.

Because he's a Death god, Bossa has appeared in various mortal forms in order to make transitions to the afterlife easier, though it depends on where he is,

Personality
To be added...

Copper Wheel Heartstrings
Copper Wheel Heartstrings is Bossa's biological father. Due to being stillborn, Bossa wondered if Copper Wheel truly wanted him or not, as his father had been living in abject poverty when he and Blue were born. Fortunately, after dying and being ushered into the afterlife, Copper Wheel assured Bossa that he still loved him and even grieved his oldest son's death. He was extremely proud of Bossa when the latter managed to Ascend to godhood through his many good deeds.

Sunny Love
Sunny Love is Bossa's mother. Due to being stillborn, Bossa wondered if Sunny truly wanted him or not, as his mother had been living in abject poverty when he and Blue were born. Fortunately, after dying and being ushered into the afterlife, Sunny assured Bossa that she still loved him and even grieved her oldest son's death. She was extremely proud of Bossa when the latter managed to Ascend to godhood through his many good deeds.

Blue Suede Heartstrings
To be added...

Gavisus Manes
To be added...

Sola Mors
Sola Mors is Bossa's younger adoptive sister, and they presumably have a good relationship. As members of the Trimortidae, they work together to comfort those who are dying and bring joy to them. However, Bossa is willing to let her be punished for her actions whenever she did something wrong, as he caught Sola Mors and a few family members trying to stop mortal sapientkind from dying, which led to the group getting lectured by the Three Deaths.

During Sola Mors' stint as a vengeful poltergeist, Bossa sympathized with the pain and despair she experienced in life, and was disgusted with those who bullied her and/or didn't stop the bullying. However, he made it clear to Sola Mors that she was lashing out in revenge, not caring if she hurt those who actually had nothing to do with her bullying and suicide, and forced her to see the truth by telepathically bringing out her happiest memories. This caused Sola Mors to realize she became a monster, and she achieved some measure of peace by reconciling with her mortal adoptive family and friends she left behind. Bossa did punish the bullies and teachers by forcing them to feel Sola Mors' suffering with his empaty, though, something that he would later teach Sola Mors after she Ascended to godhood.

Blue Goldstone
To be added...

Audens Manes
To be added...

Malus Manes
To be added...

Record Beat
To be added...

Rhiannon
To be added...

Amina
To be added...

Narren
To be added...

Starlet
To be added...

War Rock
Bossa hated War Rock for causing so many deaths in his selfish quest for immortality and power, and tried to exact revenge for what he did to Blue Suede Heartstrings and his friends just as Malus Manes was going to drag War Rock's soul down to the appropriate Hell-Realm. When Malus refused to let him do so, Bossa bargained and pleaded with his adoptive uncle until Malus finally relented, and gave him only two hits. Bossa then dedicated those two hits to all of War Rock's victims and his many attempts kill Blue and his friends, striking War Rock in the face first with a hoof, then with his divine guitar.

Poenan Pantheon
To be added...

Abilities
Alicorn Magic: As an Alicorn, Bossa has all the combined magic of all Pony Tribes, including the lesser-known ones such as Musical Ponies and Sea Ponies, something that surprised him and Blue when they found out.


 * Earth Pony Magic: Like Blue, Bossa is skilled in using Earth pony magic to enhance his hoof-strikes in combat.

Death Magic: As a Death god, Bossa is incredibly powerful despite not being a "prodigy deity" like his twin brother, and has various techniques that he can call upon when in a situation of great need.


 * Death Sense: Like all members of the Trimortidae, Bossa has a clairvoyant ability that allows him to sense when people are going to die. This allows him to help people during their last moments.
 * Precognition: Unlike most of his adoptive siblings and cousins, Bossa possesses Death-based foresight that gives him visions of how a person is going to die. Despite its horrific nature, Bossa uses his ability as motivation to bring joy and comfort to the dead however he can.
 * Weapons Summoning: Bossa can summon magical copies of various weapons for his own use.
 * Shapeshifting: Like all Death deities, Bossa can magically take on various forms. He has often appeared as a member of a dying person's race so he can help them feel more at ease when they die. It also explains how he often appears in his mortal Unicorn form. Being a prankster, Bossa has sometimes masqueraded as Blue and pretended to be him as a joke, which Blue is NOT amused with. However, Bossa admits that Blue is better at shapeshifting and acting than he is, partly due to his twin brother embodying Performance on top of being a former movie actor during the Second Age.
 * Soul Summoning: Bossa can summon the spirits of the dead to fight for him. He only does this when necessary.
 * Afterlife Transport: Bossa can travel between the divine and mortal planes to help usher the souls of the deceased into their respective afterlives. In his case, as an adoptive member of Gavisus Manes' family, he ushers those who died peacefully into Gavisus' Heaven-Realms.
 * Eternal Rest Inducement: Bossa can free spirits who are trapped in the mortal planes by "cutting" away at whatever's binding them with his scythe. This allows the spirits to pass on to the afterlife and be at peace. This makes him a nightmare for necromancers.

Music Magic: To be added...

Joy Magic: As the Alicorn god of Joy, Bossa has magic pertaining to Joy as a concept.


 * Telepathy: Bossa has telepathic abilities that allow him to detect and encourage joy in people, especially the deceased and dying. Like Gavisus Manes, he can dig up a dying person's happiest memories and allow them to relive said memories, snapping them out of their bitterness and making them realize that ultimately, their life wasn't as bad and worthless as they believed.
 * Empathy: Bossa has empathic abilities that allow him to detect and encourage joy in people, especially the deceased and dying.
 * Emotion Aura: Bossa can project an empathic aura that ebbs negative feelings in people while filling with joy and happiness.
 * Emotion Projection: Bossa can "emotion-bomb" those who willingly rob people of their joy as punishment for their actions.

Empathic Bond: Bossa shares an empathic bond with Blue Suede Heartstrings, which allows him to sense what his brother is feeling and vice-versa even without his empathic abilities. It is believed that being born identical twins is what gave them their psychic connection, and it persisted despite Bossa's stillbirth. Kúzelník, the Deer god of Sorcery, offered to help Bossa and Blue improve their empathic bond, but they turned him down after a long talk.

Musical Expertise: To be added...

Combat Expertise: To be added...

Equipment
Scythe: Like his adoptive family, Bossa possesses a scythe to help him with his duties as a Death god. It comes in the form of a divine skull-shaped guitar that heavily resembles the ancient electric guitars of the Second Age... until it unfolds and reveals the sharp blade of a scythe, revealing itself as a guitar-scythe hybrid. Bossa is skilled with the scythe, allowing him to free souls trapped in the mortal planes and fight enemies in combat.

Background
To be added...

Trivia

 * Bossa Nova Heartstrings is based on Jesse Garon Presley, Elvis Presley's deceased older identical twin brother. Like Jesse, Bossa was born to poor parents yet died in stillbirth, while his younger brother survived and became a musical celebrity. However, unlike Jesse, Bossa would "live" on to become something great despite being dead, ultimately Ascending to godhood as a result of doing good deeds.