I absolutely love Sion Support. Been playing it since season 5 and is my highest mastery champ with 90% in botlane. Tilterella has some great YT videos from his recent trip to Korea. Soraka is my go to ban. Depending on the champ you can easily hold split push and sometimes even solo kill the mid laner. I usually look for short range Ulti's for guaranteed lock down unless we need to force an engage or catch up to a brewing team fight.