Boundary became the closest he could get to frustrated. His eyes turned from their bright and radiant amber to a deep black, deeper than the blackest black. He held a hand out and the very shadows rippled and moved as if alive, he moved his hand to the left and the shadows formed into solid spikes which ripped from the floor and flew at the assassin. He ran at her and slammed his fist into the ground, the force causing hundreds of tiny hands to fly out of the ground and grab her by her arms, legs, and body. The spikes did not pierce her body, though they just as easily could have, he made sure each one made an unlethal cut on her body, whether it be a grazing blow or a cut to an unvital area. He flung his fist forward and the darkness formed into a giant solid fist, which flew across the roof and slammed her straight in the gut, the force breaking her free of the hands and sending her off the roof. He walked towards the edge of the roof, looking down upon her and his sword gleaming in the moonlight.