[@Andreyich] To clarify, the Emperor didn't use any form of warp magick to try to remove Angron's Nails - nor was he ever going to; he Asked Land To do it the scientific way, he couldn't without kiLling him, and that was that.

There has never been a precedent because no-one has ever written it, yet; pretty much every World Eater we ever see isn't daemonic in nature, just souped up Astartes.

For your sake I shall leave them in his meaty-ass head, no need to thank me and free of charge.