(Shamelessly copied and edited from the similar post for Emet-Selch)

Elidibus | zodiheart | Soul is colorless, subtly takes on the colors around it, will take on a blue hint most readily.

Soul Characteristics: Elidibus is in possession of an adamant soul, sturdy, bright, rich, and full of life. Far older than his face appears. His soul appears almost identical to how it had in the World Unsundered - save for the additional age, power, and experience it has clearly gained. The aetherical potential is close to limitless as well as extremely dense.

Dragon Soul: Nannan Urathear | Steel | Shimmering Silvery-white, like moonstone
Further details unknown.