User blog comment:Emptylord/Champion reworks/Blitzcrank the Great Steam Golem/@comment-4652200-20160520133843

So anyone can dash, blink and after they get hit with Q before they're pulled? This promotes mobile enemies to let Blitz Q them and essentially use their mobility to stun Blitz while he retracts his hand.

Sure there aren't many supports with adcs with high mobility but there is - she can attack Blitz while he is Qing her, click to dash and break his pull.