Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Rammus it's a great tank champion you can use powerball for hunt enemy and taunt for give your team time for slay your enemy.
Tremors it's good for slay enemy and tower or pushin back minion.
Defensive ball it's great for increase you damage and damege more your enemy during taunt
You can use powerball for run away and save your self
My record withing this build is 20/1/19 ;)