True damage
So I'm a bit upset at how easy it is to ignore armor right now. Vayne Fiora and yi just completely bypass armor. The purpose of armor is to mitigate damage. It doesn't give you damage ( unless your taric or malph). So by buying cloth armor you gain 10 armor but the person your fighting buys long sword gaining 10 damage. The damage will be mitigated. That makes sense. True damage however is countered by health. Even Thornmail is useless to champions with true damage. There is nothing that stops that damage and only very few champions have true damage and if you notice they are played constantly practically every game. I think that any champion that deals true damage should be changed to normal damage except for ahri and Olaf. Vayne needs a nerf. Everyone is saying it. Fiora clearly nerds a nerf. Yi is just yi. But taking true damage out of equation would solve the balance problem riot ignores.
and his true damage/arpen barrels, 
with his %HP true damage and his true ulti against the VIllain, 
and his %HP magic damage per hit from afar, 
who can reach 70+% HP in 5 seconds with his W if fed, 
--who needs tweaks imo-- but still is a decent tankbuster (even though it's not his niche, although it should be)... there are a lot of champions who can melt you if armor/MR is all you rely on.
