User blog comment:TheTobarMethod/Nerf Worthy Champs + Your Thoughts/@comment-4124337-20130703220148

This issue with the nerf you say on LB and zed is that they are specificaly designed to deal one skyhigh damage burst on one person, after that their damage drops through the floor like it is meant to. This means they can say, take out an enemy ADC, but take themselves out of the fight for at least 6-7 seconds to do so.