User blog comment:TonywongWYK/Patch Ideas/@comment-5514182-20130825214115

I think Sivir's problem is that she lacks mobility and CC, and thus can't kite. ADCs like Ezreal and Lucian with no CC have an escape. Ashe, Varus, and even Urgot have a slow and hard CC. The rest have a combination of the two.

Sivir has no crowd control abilities, not even a slow. Her passive and ult grant movement speed, but it's hard to chase people who can slow you down and escape easily.

What if popping spellshield slows down whoever popped it?