Tend the Graves

You have the ability to open a portal to a pocket dimension that has the same properties as the Shadowfell. Appearing in an unoccupied space within range, the pocket dimension can hold up to 200 undead.

As an action, you can peer into the pocket dimension as if you had cast the Arcane Eye spell. Additionally, as an action, you can open the portal to allow your undead to enter or exit without having to recast this spell. You can't have more than one portal open at a time.