Plate Armor of Etherealness

Armor (Half Plate Armor or Plate Armor), legendary (requires attunement)

While you're wearing this armor, you can take a Magic action and use a command word to gain the effect of the Etherealness spell. The spell ends immediately if you remove the armor or take a Magic action to repeat the command word. This property of the armor can't be used again until the next dawn.

Plate Armor of Etherealness is from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, used under the Creative Commons Attribution 4.0 International License. Full attribution is on the Licenses & Attribution page.