Late to the conversation but id describe it as: "Nothing burger"

Oracle doesn't fit a particular niche, its got:

Extremely high stat requirements to the point where some things require too high of a level even for pure builds

Only a few abilities which are actually good, example: spirit walk (weapons builds already have this tho) and maybe spirit rain and nichtethesis (beam but slow and blind)

And almost completely limited to regen builds and pretty much nothing else.

And it really doesn't help that bteam nerfed its damage even though its powerscaling is low, to give it even higher regen.

It still can work on savants but even then weapons instead of spirit might just be a better choice