For a class assignment last year I recreated the Hedron Blade from the Magic the Gathering card of the same name, painted by the extremely talented Zack Stella.
See the original painting here...
https://www.artstation.com/artwork/V1YzN
I believe I've lost access to the original files so for the time being I have yet to bring it into Unreal or Maya for better renders. I will update this post as I find/edit/add to this older project.
For the time being, all I have left are these substance painter screengrabs.