Well, this build, actually is for the ones who go tanking the enemy champions and defending in team fights, also made for pushing and taking down towers, the extremely high armor makes him almost unkillable, unless you confront a mage... but that wouldn't be a big problem, cause the armor boost of Defensive Ball Curl can deal with spells...
Also, Enemy champions can't escape the team fights because you can taunt them with Puncturing Taunt, so, if the enemy starts a Team Fight, its very probable that they won't escape.
Tremors is used actually for two things, farming minions and damaging everyone who tries to fight you.
And Powerball first I use it chase enemies or travelling fast, because the consumption of mana isn't too much.

Why the skill sequence is arranged that way? Simple.
First you need Powerball for travelling, just for that.
Second you need Puncturing Taunt so the enemy champions don't escape.
Then, from level three to level 5 you should upgrade Defensive ball curl, the armor boost comes very handy.
Tremors gives you the ability to get fed faster, because killing minions it's like eating cake when using Tremors, also the Frozen heart provides you with cooldown reduction, what makes you use Tremors more often.
Then you should keep pumping Defensive Ball curl, and when you can't level it you should apply points to Puncturing Taunt.
When you maxed Defensive Ball curl start pumping Puncturing Taunt.
At level eleven upgrade Tremors to level two, after that keep pumping Puncturing Taunt.
When you have maxed Puncturing Taunt, level up powerball until level sixteen, when you should max out Tremors.
After that I think you are gonna be Almost Unkillable, but if you die, you are gonna take with yourself many enemy champions.

Actually you should keep killing minions until you are level 6 and you have the Thornmail.
Why?
Because you would need the return of damage, that in combination with Defensive Ball Curl it can make the enemy die just by hitting you.

After you have the first Thornmail getting fed can be just too easy.

Tremors could be the best skill to use when farming, it's simply amazing how much gold you get when you use it when facing lots of enemy minions, also makes it useful to kill monsters.

This is a Rammus made for tanking towers and resisting ganks, strong armor makes him too much resisting and also has very well damage.

First of all you should buy the Ninja Tabi, because it gives you a boost of speed and also gives him a little pump to armor, its great for the beginning of the game.
Later you should buy the Philosopher Stone, great Hp and Mana regen and the boost of 1 gold per 10 secs makes the build faster to get.
After that the next item is the Thornmail, it gives you more armor and also boosts the damage return (used with Defensive Ball Curl its amazing how fast the HP of the enemies decrease).
Then you should make the Frozen Heart, great boost of armor and good cooldown reduction makes it great for when you use Tremors usually (I use it almost all the time to kill more minions and fast so I get lots of gold).
Later you should build the Force of Nature, great HP regeneration and great Magic Resistance, unless you have only enemies that do physical damage then you should replace this with a Thornmail.
After that you should make the 2nd Thornmail, for the armor boost.
Then, if you have the money, sell the Ninja Tabi and make the 3rd Thornmail, with this you will have lots of armor and be almost unkillable from enemies that do physical damage, also you will have enough armor to kill 3 turrets in a row without the help of minions.(I've done it).
Finally you should finish the Shurelya's Reverie, strong regeneration and the boost of speed can come in handy when you are overrun by enemies.

This guide was totally made by DemonLyon
It's dedicated to my Team Partners
Rittoru
Nabudoconosor
Astranime
Frozzen3
Frozentl
LoWachoLoco
Niope

Thank you for reading this.