Crown of Deadspeech

Wondrous item, rare (requires attunement)

This crown of black iron, set with polished and rune-carved shards of bone, allows you to converse with the dead as if using speak with plants to converse with intelligent undead or corpses, skulls, mindless undead. The crown does not make undead automatically friendly. You have advantage on Charisma (Deception or Diplomacy) checks with undead creatures.