User blog comment:TheTobarMethod/So...Tri-Force Vayne lol?/@comment-31.25.3.96-20130308125755

Vayne does not need health, her ult gives her ad and that significantly increases her lifesteal which she WILL have. There are only 2 real parts of triforce that make it worth the money and that is the attack speed and the slow. Saying this though, you get more attack speed from PD's and vaynes passive means a slow is not needed so it is a lot of wasted gold. The sheen damage does not compared to the increased crit damage she will get of she has a bloodthirster, a blade of the ruined king, a PD, an IE and a last whisper. literally although good on paper, the triforce money is wasted when you buy it on vayne.