In S7 we have seen a revival of the support wizard, so I decided to make a little guide for it.
Support Wizard is generally used as the second (with Monk) or third (with Monk + Barb or DH) support in groups and can have a big impact especially in open, dense or dangerous rifts if played correctly, however you need to cooperate with your group a little bit more than with other support classes.
The playstyle is fairly simple, keep up your Orb of Infinite Depth buff and then, most importantly, you are there for pulling monsters together with Twister + Ranslor's Folly, and after that you stay in the fight, buff/debuff and remove dangerous elite affixes with Black Hole. Make sure you always have a Slow Time bubble up, especially after entering a new floor, otherwise you lose the DMO 4pc bonus and risk getting oneshot on some pulls. If you don't have a Barb in group, you should also try to pull monsters either via body pull or by using Ranslor to get them closer to the fight or through corridors, doors, etc.
Consider watching the videos to see a bit more of the gameplay. Enjoy!
D3planner link: http://www.d3planner.com/324732520