Thornmail a decent counter to Lethality meta?
So lately in my games I've been seeing teams run 3 or even 4 AD champions that all build Lethality items. I typically like to play Divers and Vanguards and it seems like they could still shred through me pretty fast. A couple games back I tried going Thornmail 3rd or 4th item and it worked amazingly well. Those champions had an insanely hard time cutting through me and since people rarely build life steal when going the for a Lethality build I actually did a surprising amount of damage to them as well. Has anyone else tried this and had similar success?
due all of them using either
and typically can use some magic pen which makes the damage returned better and stack with the aoe damage of 