You thin the fabric of the Ethereal Plane, allowing yourself to slide seamlessly over the boundary. For the duration, roll a d20 at the end of each of your turns. On a roll of 11 or higher, you slip into the Ethereal Plane, returning at the start of your next turn to the space you left. If that space is now occupied, you appear in the nearest unoccupied space. If you rolled an 11 or higher on your prior turn's blink roll, you roll 2d20 and use the lower result. If you rolled 10 or lower, roll 2d20 and use the higher result.   While on the Ethereal Plane, you can't be perceived except by creatures capable of seeing into the Ethereal Plane. You can see and hear your plane of origin out to a range of 60 feet, but you can't interact with anything or affect any creatures there. When the spell ends, you reappear on your plane of origin. You cannot cast this spell while already on the Ethereal Plane.