well and successful render of FATE spectre...
The SPECTRES are the entities linked to the NCORES and reason of why Ncore carriers are so powerful, each spectre are the materializacion of any emotion, feeling and abstract idea during the early days of the universe before of the existence of any sentient creatures

they are extra dimensional creatures, extradimensional in the presence level, they are creatures of unknown real name what are upper of the 3D dimensional barrier controlling and manipulating, space, time, waves outside of our witnessable world, that is why the SPECTRE name come in since we can only see their influence in our 3D space

with that said, they are creatures of variated aspect, some looking like animals, others looking like plants or animals and even other looking like some fractal thing and sons of the "NOI" gods in attempt to void the "predictability" in the universe to extend the entropy dead time for the rest of the gods, in consequence many creatures naturally created in the universe was "infected" by the influence of the Spectres developing several neural activities what allow them think, feel, and conceptualize abstracts ideas

this one in particular its the FATE one and its linked to the NCORE 23+22 BIS and actual spectre of Holly,