It's time to add a fifth champion attribute... Mobility.
Champion attributes are there to help new players understand the strengths and weaknesses of champions and I think another trait that new players should recognize and learn to play around is mobility. Some champions are inheritable more mobile than others, and this in turn allows give them an additional option to approach kills/objectives while less mobile champions would face disadvantages in the said situation. Therefore, I think its time to add a fifth bar to a champion's attributes in addition to attack power, defense power, ability power, and difficulty.
For instance, Kalista, Leblanc, Kassadin and Udyr would be 10, Yi would be 8, Sion 5, Ashe and Lux 2, Malzahar 1.
Thoughts?
edit: okay maybe I was biased about Udyr.. is 7 better?
and this: One way we can measure it is through a point system.
For instance, gap closers get 2 points movespeed boots get 1 point x duration teleport/ abilities that lets you get past walls get 3 points global abilities get 4 points
Master yi would get 2 points for his gapcloser, 3 points becuase his q can be used to get past walls but its not reliable so -1 points and he also gets a rather long lasting ult so 4 points for that for a grand total of 8 points.
This is just one hypothetical way of measuring it.
: 0
: 7
: 11

would easily be at the top with her 4.5 second lockdown. (7.5 seconds if you ult at the end of the snare instead of the beginning, and include the slow)
has an epic 3 second aoe stun... if he can get it off.
or perhaps 
's upgraded Q.
2.Self targeting move speed like
's W.
3.Gap closers that require a target like
's W,
,
4.Free movement in any direction dashes like
