Dungeons & Shivan Dragons: Phyrexium

This is an expansion of a much earlier article presenting the metal known as phyrexium that I had created for 7th level DnD Next playtest game. Now that Ravnica and Theros are settings for DnD I decided to further explore Magic: the Gathering's lore.

Phyrexian Angel wielding a phyrexium weapon.
Art by sunnykoda

   
   The metal phyrexium was created by Thran artificers after settling the plane of Phyrexia. It is a metal matrix composite of titanium, sliver hide, glistening oil, fanatical hatred of Dominaria, and the shard of a powerstone. While the artificers did not meet  Scholars heatedly debate if the process to create the foul composite can be replicated outside of the plane of Phyrexia since slivers are believed to be extinct.

   Phyrexium armaments are +1 magic weapons that deal necrotic damage due to the powerstone radiation within them.  However, they are +2 magic weapons while on Dominaria because of the fanatical hatred of the plane used to forge them.  When a phyrexium weapon scores a Critical Hit on a creature they lose 1d8 Hit Dice. If they have no Hit Dice remaining they gain Disadvantage on Death Saving Throws until they recover at least 1 Hit Die.