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.
take atma's impaler or frozen mallot if team very offencive or take sunfire cape if team being defencive. or whatever u find more useful at that moment in time.
the rotation i like to use [non ulti]:power ball into them, taunt, defence ball curl, and repeat till they die.
the rotation i like to use [ulti]: power ball into them, ulti with defeunce ball curl, and taunt when they try to run. if they manage to get away power ball to catch up.
i play rammus alot i made this mostly for me but to share and get idears from other people, hope you found it useful.