How to win trades as ranged champions in mid lane

I explain how ranged champions can win trades against melee champions in mid lane in this coaching session

[Nico]

so TL;DR:
Minimize the value your opponent gets from their skills by seperating yourself from your minions, so they have to choose between fighting back vs you or getting the CS

[olliert]

Are you actually avoiding minion aggro in the spot he mentioned? In my head all the casters are just gonna target you anyway

[slingman]

surely kass can just q syndra for shield then auto to last hit to trade back and shield her dmg is level 1 e even the play