Focus your build on health, not resists. This is because it is easy for carries to get %armor pen and %mr pen.
A good late game mixed tank build would be like this:
This provides 2600 bonus hp, 110 bonus armor, and 150 bonus mr, which means you would have around 5k hp, 200 armor, and 200 mr, which is enough to tank.
Reikken2 votesbut there's a lot of %health damage too
TTK Dreadnought1 votesand true damage. lots of true damage.
BluePolarizer1 votesmostly on junglers and top laners who shouldn't be hitting you that much.
Reikken1 votesAlso sunfire sucks. Double randuin's is the way of the future.
9001Teemos1 votesYeah in a game without heavy %hp damage, you should be hp stacking, since every adc builds 
/
or 
and 
is only optimal on a very few select champions.
Spoofghoul1 votesheres another tip
just run away and let someone else dive
DemainaNyx1 votesAlso don't go in 1v5 and expect your team to follow. Try to ping if you are going in so people know to follow. I go between support and ADC for most of my games and when I'm support or another role, I'm constantly amazed at the ADC not AAing anyone. Yeah, if you're being attacked, fine, try to get to safety. If your Rammus is being focused though, please hit someone. I honestly don't care who you hit, hit someone.
Sylvant1 votesI also found health to be a better stat to stack this season. Maybe duo to the fact its impacted by several item passives like 
. Paired with medium amount of armor and resistance works just great
