User blog comment:Care Level/A couple of New Items./@comment-7118467-20140504211458/@comment-24706802-20140505012207

He is correct that bonus AS for one attack doesnt work. Rengar's Q is an auto-attack reset, along with abilities such as Talons Q, Jaxs W, Wukong Q, Vi E, Trundle Q etc.

Abilites that grant bonus AS always do it for a period of time or multiple attacks.

imo this item is too strong overall