Volibear

Can you take away the ability for voli to stun/mana burn/ disarm/ silence/ etc other units hit by his ulti?

It literally makes a voli comp viable. Run 4 glacial + units that can keep him alive, and watch him mow through all enemy units.

Stuns kill off all tanks, ranged mana burn kills all sorcs, disarm kills off all assassins, silence kills off shapeshifters.

All you need to do is run. Voli w/ Demon Class + Hush + Disarm and get 4 glacial. Which is a lot easier than it sounds.

Considering that you have access to liss, voli, ashe, braum up to three cost units. The hard part is getting Hush + Disarm. Even then, those items aren't contested on the draft round. If that is your strat from the beginning of the game, you normally pick up someone with one of the key items you need, you are going to live until the third draft. So that is three items, meaning you can make at the very minimum one of those items.

By the third draft round, you should have 5/6 units on the board. Meaning that it should be liss, braum, voli, ashe, (Elise/Eve/Aatrox/Morg/Brand).

It is a really dumb comp, because glacial is already stupidly strong, because they offer no counterplay.

Every other one has some form of counterplay.

Yordle > Assassin and Noble (Decently strong against partial comps)

Sorc > Yordle and Noble (mildly strong against partial comps)

Noble > Assassins and Partial Comps (they are extremely strong against partial comps)

Demons > Sorcs

etc etc etc

But there is nothing that religiously beats Glacials, other than poor RNG on the Glacials part.