Darkmantle's Prowess

You have developed traits similar to those possessed by a darkmantle, granting you the following benefits:

• You gain proficiency in Stealth.
• You gain blindsight out to a range of 60 feet.
• As an action, you can cause magical darkness to emanate from you in a 15-foot radius and move with you. The darkness spreads around corners. A creature with darkvision can't see through this darkness, and nonmagical light can't illuminate it. The darkness lasts for 10 minutes, or until you lose your concentration (as if concentrating on a spell). If any of the darkness overlaps with an area of light created by a spell of 2nd level or lower, the spell creating the light is dispelled. Once you use this feature, you can't use it again until you finish a long rest.