Ability to Deny Tahm Kench's W

Played a blind pick game today as ADC with as Support. During the early game my score was 1/2/0 ( and on enemy bot lane with jungle) and so Tahm started calling me out for feeding and he decided to eat me and bring me back behind the turret every time his W was up, even when the Jungle came to gank and we could have got some kills. So basically my score was 0/2/1 the rest of the game and his was 0/0/1 and we wasted half an hour that ended in defeat. Of course Tahm Kench trolls weren't a big deal to me before, although I've heard several stories even worse than mine. Kotaku did do a piece on this guy last year: http://kotaku.com/the-new-league-of-legends-champion-can-be-a-massive-tro-1717982143

I've come up with a solution to this issue: Basically whenever you have a Tahm on your team there will be a little icon on your HUD like a check box where you can check it and that way, denies Tahm from using his W on you. You can also uncheck it; freely switch between if you want, and you may have a little strategy to this feature. As for people playing as Tahm, they will be able to see which champions have denied your W and which haven't on their HUD. If Tahm tries to use its W on an Allied champion that has denied it, the words "Denied" will appear on the targeted champion (kinda like how "undying rage" appears on Tryndamere). Tahm won't lose mana and there won't be a cooldown.