Speed equal, Shiki slaughters him. He can't block nor attack without losing his weapon. In fact, distance isn't even a factor. Last I recall, Shiki could cut the atmosphere to strike people from a distance. The Chokushi no Magan
enables her to Kill Anything
. Physical or non-physical, matter or energy, real or not real, whether it exists or doesn't exist. it is one of the most broken powers in fiction. Right along up there with the Light Hawk Wings.