PHB
Blink
3-level Transmutation
Casting Time: 1 action
Range/Area: self
Duration: 1 minute
Roll a 1d20 at the end of each of your turos for the duration of the spell. On a roll of 11 or higher, you vanish from your current plane of existence and appear in the Ethereal Plane (the spell fails and the casting is wasted if you were already on that plane). At the start of your next turo, and when the spell ends ifyou are on the Ethereal Plane, you returo to an unoccupied space of your choice that you can see within 10 feet of the space you vanished from. lf no unoccupied space is available within that range, you appear in the nearest unoccupied space (chosen at random if more than one space is equally near). You can dismiss this spell as an action.
While on the Ethereal Plane, you can see and hear
the plane you originated from, which is cast in shades
of gray, and you can't see anything there more than 60 feet away. Vou can only affect and be affected by other creatures on the Ethereal Plane. Creatures that aren't there can't perceive you or interact with you, unless they have the ability to do so.