Champion Passive Concept: Outrider [super early concept]
I honestly have not really put together how this would really work with a champion kit yet, but i just want to put it out there for some ideas.
I'm thinking of a champion passive that grants the champion a small amount of bonus movement speed when movement commands are issued by targeting the a ground location instead of when movement is needed for an attack/attack-move command.
So what this means is you would only want to issue an attack command when you are definitely within range of your target. I believe that most good players do this already, but it would actually emphasize the point in a very subtle way.
Their base movement speed would be slightly lower than average, but with the bonus movement speed they should have a total movement speed that is slightly higher than average.
I feel like this could be a little too easy for medium or longer ranged champions to pull off and would just make them stupid strong when it comes to harassing and kiting, but on a shorter ranged or melee range champions this could make for some interesting mechanics.
This also may not be strong enough for a champion passive, but it could be an ability passive.