beautiful job on this and amazing detail I tend to always have a love hate relationship with MAgic the gathering and either enjoying it a lot or it pissing me off to no end but there's certain Magic characters ive always enjoyed a lot: Phage, Akroma, Rakdos, Chandra, Vraska, Niv- Mizzet, Kemba, Glissa (when she becomes a sexy undead badass traitor and basically MTG Queen of Blades), Lilliana, Elspeth, all Myr, Molimo, the original dragon legends, and Above All:
It's a big hunk o' metal grafted to her head. As far as I can tell, it's there to mark her high status, like a crown.
Normally, it would make it hard for her to get through doors, but since Elesh Norn is one of the five highest-ranking individuals on New Phyrexia, so she can just tell her underlings to make sure that all the doors are extra-wide. Actually, come to think of it, the other four Phyrexian Praetors would also have trouble getting through human-sized doors. So huge doors are probably just the standard on New Phyrexia.