Umbral Step

5th level conjuration

Casting Time: 1 reaction, which you take when you or an adjacent ally is disengaging from a hostile creature

Components: V, S, M (atrophied plant)

Range: 500 feet

Duration: Concentration, up to 10 minutes

You or a creature touched by you gains the ability to pass through a shadow (including your own) and appear from another shadow within range of the spell.

Stepping into a shadow is treated as disengaging and thus does not provoke an opportunity attack, though emerging from a shadow can provoke an opportunity attack. You can only cast this spell if you have a shadow.