item Grappling Speed

it doesnot work in my game. what is the exact effect of this item please? anybody can fix it? whatever info appreciated.

All Grappling Speed does is do 50% more damage whenever you grab somebody(such as grabbing and punching them in the face, grab and throw or the finisher after you grab.) Luke Cage would have even more of a good time slamming faces into the ground. I wonder however if that would stack with Nick Fury's Power Grab. I'll have to try it.