User blog comment:DarknessStriker/Which support should I choose?/@comment-6906412-20130521071606/@comment-8506165-20130525201345

Kill potential's not really what you go for in a support, but I guess in the case of a long-ranged snipe that picks up an assist for the carry when otherwise they'd have gotten away I guess it can be useful.

Particularly when it's on such a *cough* reasonable cooldown...