Yu noticed that the chunks missing on both it's legs started to grow back, he then looked up at Ryuu who was doing this smokey black arc attack which cleaved through the Hollows arms arm which disintegrated before it touched the ground, Ryuu's spiritual energy also rose a bit before lowering again. Yu then stuck his Shikai into the ground again with four more wolves forming, but these ones ran right at the Hollows legs, and exploded shooting up a cloud of dust, when it cleared both the Hollows legs were gone, and all it could really do as it's legs regenerated was try and swing at them.