User blog comment:UsoppThePotato/Let Corki shine again!/@comment-5663427-20140215170951/@comment-4022742-20140217145703

"How the hell can playing ADC be about playing the champion with the longest range when Sivir is a part of the FoTm ADC trio?"

Because she can push harder then anyone in the bot lane. And has a decent range on her Q that makes her a threat from long range. For instance if engage on someone out of attack range,  can still take advantage of the supportive passive with a long range Q.

The point for having a long range ADC along side, and  is their ease of following up since they get in range easier. When you look at champions like, , , or  they have the mobility and ranged skills to actually follow up. But when you compare that to champions like, , , , , and  they either lack mobility or range to catch up with their support comfortably.

There are some exceptions like, and  that don't really belong to either category, seeing as the first two do have the long range skill, but no tool for catching up. And the latter having the tool to catch up, but only has the range past ~level 12-14. and would fall under this category as well, seeing as they have movement speed buffs and long range ultimate abilities, these are impractical however, seeing as you'd need to coordinate the Supportive Crows Control with the devastating ults perfectly.