Why can Allies CC apply Kai'Sa's Plasma Stacks?
###NOTE: This isn't a hate post, just a genuine question. I am trying to be reasonable even if I don't exactly like this Champion.
Just got me thinking, most other stacking Marksman...
Have to stack on their own while
can apply her Passive too easily with CC and a few (usually 2 AA's) basic attacks.
She can also apply the stacks with W, on top of it all.
###So why is this a thing?
I think because of this interaction, is also one of the hidden reasons why she's so pick or ban in worlds. Because she's able to proc her Passive damage to easily and excessively.

can apply her Passive too easily with CC and a few (usually 2 AA's) basic attacks.