Talk:Vayne/@comment-9132387-20130914172249/@comment-20804982-20130918024933

Because of the way armor is calculated, and because most champions have ~80 armor naturally at lvl 18, LW actually ends up giving a flat damage boost against nearly everyone (the damage increase drops off a few hundred armor).

It is a little strange, but LW currently is slightly LESS effective against huge armor stacking tanks than it is against lvl 18 chars with no armor items. This seems counter-intutitive, but has entirely to do with the way that Riot calculates armor (each additional point of armor is less effective than the last).