At the moment when Kaito threw his sword, and unsheathed his last, the monstrosity of dozens of arms caught the sword in one of its bulges, slowing it further. At the same time, it reached out to grab his legs, as his arms were preoccupied. They held on to his legs with an immensely tight grip, which would have forced any normal man to stand in the same spot. This elf, though, would probably only be slightly slowed, his stance now hindered by a dozen or so arms. The creature spat out the sword from its bulge, letting it land outside of the circle.

The shadow version of Kaito maintained his two swords, mirroring the skill and mannerisms of the real thing. It engaged with Kaito, finally, jumping and twirling around with relative ease, the dexterity of a thing without any real weight. As though made of water, it fluidly shifted its shape through the dances it had learned from its observation of Kaito; unlike the joints of a human being or natural animal, it just flowed through the motions.

It was not she who had learned Kaito's style. She had allowed the creature to learn, through observation- it would only last until the end of the fight, or the end of the hour, whichever came first, then the creature would dissipate back into the darkness, the knowledge forgotten. 

Satisfied with the abilities of her creation, Grey stopped her song. She opened her eyes, and lowered her arms, and watched the fight. Indeed, she even sat on the ground, crossing her legs beneath her. Her eyelids were low, and a long, extended yawn betrayed her exhaustion. It was clearly taking all of her energy to stay awake.