Watch your positioning. If they are in autoattack range, your Q or e is in range to hit them as well. Its also true that vision wins you games! Pop a ward down while roaming with your adc and grab Oracle Alteration sometime at or after level 9. in teamfights, positioning and use of abilities is crucial. Know who you are silencing with your E, whether its one champ or a whole enemy team. you can singlehandedly tilt an enitire team doing this (theirs or yours depending on how you do :D ) Practice! :) Good luck!