This build adds a little boost to Shaco during the current tank meta in season 5. You to start off with some damage stats for farming and counter jungling, then progressively gain some defence mid to late game and still have very nice damage for the enemy backline squishys. Building bruiser like this with Cinderhulk, Randuins, and even Blackcleaver will allow you to survive some of the enemies tanky front line and their crowd control and of course help you from getting one shot by their stronger carries. This build will always change around from game to game depending on what you are up against and I strongly suggest you take into consideration the situational items. For example, if you are against an AP heavy team you will want to take something like the Mercurial Scimitar or Maw of Malmortius with magic resist instead of the Infinity Edge.

EARLY GAME
Early game as Shaco you will generally want to focus farming for you boots and hydra. I personally enjoy using Shaco's kit to its fullest potential in the early game and you may consider looking for early gank opportunitys after taking your first few camps or if you are familiar with counter jungling this is the best way to take advantage of Shaco's great early game and possibly look to get the enemy jungler behind. Shaco is able to take the dragon pretty early by himself with some health pots and a pink ward. His boxes are able to take about 3 hits from the dragon. If your lanes are doing fine and there are not any good ganking opportunitys this is a great way to make use of your time effectively and help your team by securing an objective. You never want to spend a lot of time trying to force a gank as Shaco and risk getting behind by not taking your camps. You will also want to focus on getting damage out on the enemies turrets after a successfully gank, your boxes and ult do nice damage to turrets.

You want to start off with all three abilities and then max Shaco's E (Shiv) first for damage, slow, and farming and then max Q (Deceive) next for critical damage. Since you aren't building AP your W (jack in the box) will be upgraded last.