Lethality?

i mean like its balanced on most champs, its just the retarded few. Graves Quinn Jarvan and a few others

Lethality is meant to kill a squishy, but verse a tank who builds a lot of armor it wont do much.

No it's not, but as an MF ADC main I have to say it's kinda nice to have my champion shining so much. I build these three items and I can delete anybody squishy with just my ultimate. Oh, and my Q deals like 50 percent of and squishy champion's HP. If there's a couple of tanks surviving my ult, that's OK, I can just build Black Cleaver and maybe a Last whisper item if I absolutely need it. MF ult is basically a free triple kill or more if there's any sort of hard cc on my team. It's completely broken, but it's nice to have something broken that works for me this season, since nothing else seems to go an ADC's way lol

Just calculate the difference in early game damage , midgame damage and late game damage vs a crit build/ full ad and you will know why lethality will stay