Portal of the Netherworld

After preparing the necessary hand seals, Jashin creates a seal on the ground, which turns invisible and remains so until he as the caster mutters chants its name in Rōmaji, "Meikai no Pōtaru". When activated, the seal becomes physically visible and emits a pale purple glow, before being engulfed in a layer of chakra, predominantly shaded black with streaks of red around its circumference. Emitting a gravitational pull on all those located on top of it, the shadow-like seal causes them to sink into into, and be sealed within, a realm of complete darkness.

Jashin may then corrupt those trapped within the pocket dimension by virtually drowning them in his own ominous chakra and control them as though they were his servants, with himself the prominent master. Once trapped by the seal, there is no possible way of breaking out. Expelling chakra out in the attempt to overpower the seal is futile, as it will be absorbed into the latter's design, and further enhance its gravitational pull.