Shields need to be countered by items the same way healing is!
an ADC who builds 
(reduces damage that could be lifestealed back) / 
(grants you a shield) with [[Warlord's Bloodlust]], got a supp that can shield/heal him/her (
, 
,
etc) , being supported by 
+ 
+ 
which both could be increased by [[Windspeaker's blessing]] + + is disgusting, and the reason why adc snowball and become unkillable.
I get that healing got a "counter-item", but I'm not sure if it really counters it THAT much since it doesnt provide any further and measurable description.
says they apply grievous wounds, but why doesnt it tell the exact number of healing % it reduces?
It used to be around 40%, but imo even 40% is not considered grievous wounds, it needs to be at least 70% because thats the purpose of it, to massively reduce your healing outcome from ANY AND EVERY source.
Shields need a new mechanic/item/mastery or whatever that needs to be added to the game to reduce it's effectiveness as well, or in certain cases, some champs need to at least be able to damage the enemy ignoring their shields and reducing their healing, 
for example who's got "BLEED" passive should be doing that already.
and while I'm at it fix that "E" backflip bug already. I'm sick of constantly outplaying myself.
??