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.
In my opinion Garen is one of the best tanks that league of legends has at this time. He can be offensive and at the same time he can tank any hero that comes.
I choose ghost and exausht and spells for garen cause combined with yuumuus and decisive strike no hero can run from him in a 1x1 match. Also that combo can be use to escape faster in case of gank plus with the help of judgement that reduce any slow spells.
My build is very simple. If u dominating the game from the start i suggest my main build with regrouth pendant and health potion --> boots of swiftness --> yuumuus --> sunfire --> warmog --> force of nature --> infinity edge. This will provide u to kill any1 that passes in your way and or at the same time tank (with around 4k health) so your carries can get the kill. Dont forget to start poppin elixir if u think u dont have enough speed or health
My second build is a bit more defensive then the first one. You start with Regrouth Pendant and a health potion. Then mercury trends --> giant belt --> sunfire --> warmog --> (another sunfire or force of nature in case enemys doing more magic dmg) --> Guardian angel --> (banshees veil or another warmog). Soon as u finish first sunfire get an elixir of fortitude as fast as u can.
Hope you enjoy my garen build :p