Dark Mantle's Darkness

Speak the cloak's command word to emit an aura of magical darkness. This aura extends from you in a 15-foot radius, moves with you, and spreads around corners. The darkness lasts as long as you maintain concentration (as if concentrating on a spell), up to 1 minute.

Darkvision can’t see through it, and nonmagical light can’t illuminate it. If any of this spell’s area overlaps with an area of Bright Light or Dim Light created by a spell of level 2 or lower, that other spell is dispelled.