Cloud doesn't belong to anyone. He's past that point and there's no way in hell he's going back. He's also not going to kill a child. His sister. Kadaj thinks too simple, he always has. There are a lot more options than the ones he's focused on.

"Funny, I remember you dying last time we fought."

He's done talking though and his focus shifts to take in Ami as well as she approaches. He's never actually fought against her before but he's fought next to her. It's a bit of an advantage. His eyes narrow at the arc of power and, because it's blunt and straight forward, it's easy to dodge, swinging himself clear of the tree before the blow lands and into the branches of another of the trees. One that's farther away.

Come and get him, little sister...