Cant bind motion controller to hand -

Hi, there , i m trying to make a sword game. The main game mothod is to use motion controller as my sword to attack each other.

Than i get some problem during the development.

First , i transfer motion controller’s transform to sword , then ,i wanna transfer the sword’s location to my hand , and bind to the hand .

But i get trouble in this .

Here’s my logic .

If anyone have idea about this ? THX