Let's make some other abilities not work while silenced:
Charge - Can't because you are silenced (You can't charge if you can't scream, ever seen braveheart? He's always screaming and running into fights)
Aim Shot - How can you Aim Shot someone if you aren't able to speak (they always speak while shooting in Lord of the Rings
Backstab - Hard to whisper in the ear of your opponent and stab them in the back if you can't talk
Death Grip - Can't reach out and touch someone if you can't make that phone call via Death Grip when silenced
Savage Roar - Tough to kitty scream if you can't talk right?!
Please list some more items that should be nerfed like Shaman Totems.