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.
WARNING: Due to the item choice I advise that prior to attempting it you are skilled with Garen and know that you will have a good score as two items are reliant on kills and assists and are penalized for deaths.
The point of this particular Garen build is to emphasize on his ability to be a very successful hybrid. With this is mind you are neither great at tanking or doing damage, however, you are very reliable in almost any team fight.
I normally always start out with [Boots Of Speed] unless I calculated by looking at the enemy chosen champions that I will surely be fed and have a great early game --if that is the case I'll focus [Sword of the Occult]. Everything else is self-explanatory, however, after you've purchased your [Guardian Angel] I usually focus on elixir buffs, red being first of course. The final item is up in the air. Desire more HP? If so grab a [Sunfire Cape] or something similar. Want more damage or HP? [Frozen Mallet] is always great. Or simply more damage? [Madred's Bloodrazor].