User blog comment:Rezardmaw/Bloodrazor proposed change/@comment-5035765-20160514225256/@comment-27722295-20160515201945

My idea is to give stack which can only be converted after assisting teammates objective. It's also discourage BR user to complete the fully stacked BR so soon because at that point 15% total attack speed is MUCH MUCH WORSE than 45% bonus attack speed.