Hello im Magic! EUW Shaco support player since season 5! I always played shaco support ever since and well... The nerfs never stopped me from perfecting my gameplay. I decided to share my builds and thoughts on this unusual pick that everyone flame. I personally think shaco can be an amazing support for not only your adc but your whole team. The zoning, crowd control, map control is insane. If executed correctly, Shaco support can be a total game changer. Come watch me on Twitch as i play shaco support while providing any info that requested. Sorry for bad england. https://www.twitch.tv/magikshaco

Always try to go place a box in tribush near botlane to prevent invades and lvl 1 cheeses. Be careful if you are on redside becouse they can get there before you! Then comes my own jungle leash. If jungler starts on your side do this:
Place two boxes on his camp, first box goes on 0:50. Then instantly back to base to regenerate mana and go back to your lane. If done quickly you won't miss any xp from the lane!

Lvl 1 you are a walking npc. Try standing in middle bush and placing a box in the third bush closest to the enemy tower while remaining invisible in bush. Yes you can do it with shacos w placing range. If enemy is weak early and squishy you can look for an all in at lvl3. You are really strong lvl 3. Burst enemy with backstab exhaust and ignite and finish them off with your E.

Look forward into helping your jungler! Place boxes at drakes if your jungler wants to try doing them. Don't be afraid to roam around! Shaco was built to be a jungler so even as support you can gank the enemy with your q and exhaust with ignite. Start controling the map with your boxes and vision.

Go crazy late game. Seriously place boxes everywhere on cooldown. Be the biggest pain in the *** for your enemy. Tilt them and provoke them into trying to kill you. Then as they sweat their *** off trying to catch you spit on them with your Q,R and zhonyas! Be carefull not to get TOO cocky. You are not immortal, just really slippery!
CONTROL THE MAP. Spam at least 5 boxes near objectives like drake or baron. Predict where the teamfight will happen and setup a box gulag before the fight.

As i said before you have to setup boxes before the fight as much as possible. Its your biggest chance to win a teamfight. Then send your clone into the middle of a skirmish for a 100% chance of enemy destroying it resulting in a massive cc,dmg,and antiheal liandry burn! A good Shaco ult can turn the whole teamfight around! Distract enemy carries and waste your enemies time. Basically, couse as much chaos as possible so the enemy cannot even comprehend what is going on!