I have been playing shaco for quite a while, and have tried all the different playstyles. I have to say that this one is the most fun. With this build, you get a very healthy clear, which is very hard in season 11 on shaco, survivability, low cooldowns, and tons of damage. With this build, you do tons of sustained damage and scale quite nicely with conqueror and the items you build. With ingenious hunter and your items you will get around 50% cdr, and even more on your goredrinker. This allows you to spam it in teamfights and be unkillable with the goredrinker healing, constant invis, cc, and conqueror. If you are to fall behind early, this build is great as you can actually farm to catch up as your clear is not abysmal with the ironspike whip and tiamat, functioning as the old tiamat active and passive. This build is thus a lot more reliable to go, and also fits better into team comps as you are not a glass cannon like ap and ad shaco with their low hp.