Ethereal Walk

You step into the border regions of the Ethereal Plane, where it overlaps with your current plane.

While on the Ethereal Plane, you can move in any direction. If you move up or down, every foot of movement costs an extra foot. You can perceive the plane you left, which looks gray, and you can’t see anything there more than 60 feet away. You can affect and be affected only by creatures, objects, and effects on that plane. Creatures that aren’t on the Ethereal Plane can’t perceive or interact with you unless a feature gives them the ability to do so.

When the spell ends, you return to the plane you left in the spot that corresponds to your space in the Ethereal Plane. You can also take a Bonus Action to return to the plane you left in this way. If you appear in an occupied space, you are shunted to the nearest unoccupied space and take Force damage equal to twice the number of feet you are moved. This damage can’t reduce your Hit Points below 1. Until the spell ends, you can take a Magic Action to step back into the Ethereal Plane.

If you attempt to step into the Ethereal Plane while you are on a plane that doesn’t border it, such as one of the Outer Planes, the attempt fails. If that attempt was by casting this spell, you don’t expend the spell slot or the feature you used to cast it.

When you cast this spell, you can share its duration with additional willing creatures within 10 feet of you up to a number of targets equal to the spell’s duration in hours. Divide the spell’s duration by the number of all targets, including you.

Using a Higher-Level Spell Slot. The duration is longer with a spell slot of level 8 (16 hours), or 9 (24 hours).