User blog comment:StrategicMagic/Vayne - Carry? Yes. AD? No./@comment-203.218.84.204-20120819132039

Building attack speed is definitely not a bad idea on vayne, BUT infinity edge MUST come first, espically early game where ur w wont do much damage

I NEVER get last whisper on vayne just because when that item becomes avaliable to you, its already late game and ur w will be dishing out ~60% of the damage, i'd agree with you and would rather get another phantom or opt for mandred for a complete tank destroyer build