The problem with the Damage and ADCs..
Back in the days when you were seeing ful AD team you were like ok the plan is to build full armor and try to snowball a bit early before they get their core ITEMS and L.W
But nowdays even if you build armor its useless...
Why? lets see
First there is a mastery that provide +10% damage for someone who have more than 2k hp than you (A baby lord dominiks) then you have Statikk that can crit you for 400 magic damage...Then you have L.W that not only ignore armor but deals damage base on your HP and with the combination with the mastery you take +20% more damage if you have 2k hp more than them...which is stupid and on top of that they ignore 35% of your armor...
So in order to not melt vs AD and ADCs you need to build MR??? wat? yeah because if you take 400 magic damage every 3 AA special with the interaction of FRC and Statiik and how fast they charge you will die in 3 AA...so you need to build MR against AD..riot logic..and you need to not build HP because you will take 20% more damage if you dare to build HP
So in order to survive you will need some weirds items like
(If they have life steal)
all that in order to survive
but even if you have that items you still will die fast because you have no effective HP..so its a cycle and the best of it is that the AD items are way cheaper than the tank items dont believe lets see
2700
2900
2700
2500
1100
2700
14600
2600
2600
2600
3400
11220
And yes you need 6 items in order to survive more than 3 hits against an AD with this 4 items.... and i dont count the fact that L.W remove 35% of your bonus armor
and what riot does for that? nothing.