Dark Mirror

A shimmering 5ft radius sphere appears centered on you and remains centered on you for the duration. No darkness, whether magical or not, can extend through the sphere from the outside. Also, you can see through the darkness, whether magical or not, out to a range of 30ft.

If the sphere is surrounded by darkness, it reflects that darkness like a mirror, causing the sphere and any creatures inside it to be invisible to creatures outside the sphere that could otherwise see through darkness with traits such as darkvision or devil's sight.