Stemming mostly, if not completely, from his power to control reality, Seireitou has the ability to fade backward while he's breaking into cubes, very similar to Instant Transmission, only he doesn't leave all at once. This ability actually pulls him through more portals much like Illusion Smash, it only looks like cubes. This is supported when Ryun fires a blast at the space Seireitou just left, but the blast hit him where he reappeared as if it traveled with him.