Wings of Eclipse

Either by summoning crows or by using a portion of those summoned via Scattering Thousand Crows Technique, Kurohime can envelop herself by erecting a dim-black barrier, which drains the chakra of the crows selected to constantly encircle her. The more crows expended for this technique, the greater the defensive capabilities of the barrier, which at its earlier levels may only be capable of blocking sound-based attacks, but on its later levels if can even guard against high-level Fire Release techniques. The barrier in general does not expend the crows' chakra while active, but rather depletes their total stamina respectively when struck, so if a technique more powerful than what the crows can manage makes impact, the barrier may be dispelled, unless Kurohime dedicates more crows to its endurance.

The barrier does not obstruct the usage of ninjutsu, on Kurohime's behalf so long as it doesn't destroy the crows composing it, hence making area of effect techniques such as Shinra Tensei poor collaboration candidates. Of course, this doesn't prevent her from using them when needing to effectively defend herself, even if it means cancelling out the passive technique in the process. As the crows constantly encircle her, Kurohime is mostly granted a full radial line of vision, courtesy of the Rinnegan reflected in their eye sockets.