Epilogue

Epilogue, the blade of endings
everything comes to an end
-deals 2d12 necrotic damage if someone other than the one attuned to it attempts to hold it
-can cast disintegrate and dispel magic
-on a critical hit, the living creature must succeed a DC 15 Con save or die, dissolving into black dust, leaving a brief stain before blowing away.
also, just get the users to try and find really creative ways to end things; putting out a fire by ending the oxygen supply

Mark Hulmes, Nights of Eveningstar

legendary blade, previously a guarded treasure of the Queen of Air and Darkness, before a mortal dared to steal it from her. she's sure to focus on re-acquring it eventually.