For other souls and traits, see Soul Traits.
Your soul is very special Asriel. Mind if I take it? Akumu is hungry.
~ Bete Noire to Asriel about his soul on Dust

The Rainbow Soul is a "very special" Monster Soul that is owned by Asriel.

The rainbow soul has a small portion of each trait, thus giving this soul a perfect balance of all seven traits: DETERMINATION, Bravery, Justice, Kindness, Integrity, Patience, and Perseverance.


The Rainbow Soul is the only Monster Soul that is not an upside-down heart.[1] This soul has a white outline, with the inside of the heart changing colors. These colors are red, orange, yellow, green, light blue, blue, and purple.


  • The Rainbow Soul makes Asriel just as powerful as a human wizard.
  • Asriel is the only one who holds a Rainbow Soul.
  • Rainbow Soul is just one soul, the soul has a small portion of each trait. It was confirmed by Camila.
  • Chara's remaining soul has become a vessel for each trait in Asriel's Rainbow Soul.
  • The Rainbow Soul is the closest a monster can get to having a determination soul.[2]
  • The Rainbow Soul is weaker than the Determination soul trait, but it's still powerful among other monsters. [3]




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