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.
Geo's Garen Build
Start off with sword and health pot and run to a lane and hide in a bush waiting for that tristana who picked rapid fire first to face check; Demacia their face.
With the recent changes to Courage I now level it instead of decisive with just one point in it and use the pro ad ratio of it to get decent damage.
If you are doing good in you lane get occult if you are getting pwned or denied skip it entirely and go right into brutalizer.
Boot are extremely situational if the other team is Heavy melee i like the ninja tabi for free dodge early game. Swiftness boots are my norm for dps garen the extra speed is always fun for judgment and can make for some pro get in get out kinda scenarios, but as always with against heavy cc go mercury.
zeal into phantom early for dodge and make use of the speed advantage you have on the other team. Brute into Youmuu's for the fun proc making you even faster for a short interval. If it lasts the long get your InfinEdge and another phantom for good measure.
Occasionally i'll go a build that is a little different involving phage, but overall this is my favorite garen build. If you missed occult then grab a defense item like Guardians Angel or Frozen Mallet just in case speed boots 2 dancers and a yoyo proc doesnt keep you near the enemy.