Does Blink work in the outer planes? The spell it states:
you vanish from your current plane of existence and appear in the Ethereal Plane
as well as:
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
This seems to be written in particular contrast to the Etherealness spell (see also Can you become Ethereal in the Outer Planes?), which says:
This spell has no effect if you cast it while you are on the Ethereal Plane or a plane that doesn't border it, such as one of the Outer Planes.
This seems to imply that Blink will work fine on the Outer Planes, but does it?