This is my first build so I'm not sure weather this is bad or not. I'm only Lv 20 making this ,but when I play as Rammus with these items the other team can't handle the TURTLE. The damage is wrong it should be in the 200s. FYI I do know he's an armadillo ,still I don't care turtles are cooler.:)

The Pros and Cons of Rammus.

Pros
+ Rammus is evil in 1v1 fights
+ His armor makes him take so much damage
+ Great escapeability
+ Great damage late game

Cons
- Squishy early game
- Can't handle early team fights
- Hard to jungle with
- Sucks mana fast

The items make the difference with him.

The builds compaired their are few differences.
In the AD Build he has Frozen Heart, Spirit Visage, and Thornmail.
In the AP Build he has the same items, why u ask simple really.
Rammus's passive takes %25 of his armor and turns it into attack damage, so Thornmail + Frozen heart = 195 armor, %25 is 45 to 50 added attack damage. The Frozen Heart is their for the Mana and high armor. Spirit Visage is their so MR is forgotten about and healing effects are increased by %20 so increased HP Regen.

Everybody should know this that farming minions is the best way to get exp. well yes it's true, but different champs have different ways of farming. Rammus farms by walking into the middle of a giant minion pack, and W then Q to deal massive damage. If they survived the Q then they'll kills themselves cause of his W in play.

In team battles things can get crazy with all the moves going on at once. When your Rammus you prioritize the strongest enemy player. Your moves in that fight go as followed, Q-W-E-R, the damage they take will be massive and they will do less damage to the rest of the team since their occupied with you.

In the end to sum this all up Rammus is kinda the best tank in the game. Being the guy who says nothing and rolls ALL DAY EVERY DAY!!!