User blog comment:Freedfg/Is vayne TOO versatile?/@comment-31656015-20130720033129/@comment-5761259-20130720064749

Ya it's a 2 second cooldown, but that's after the auto, and if a jungle udyr with move 5's is sprinting at you, the last thing you want to do is take the time to auto anyone without decent attack speed. Which effectively makes it usable only once to evade until late game. He does take into account the invis which isn't even that great because it is A, short, and B, made even shorter due to the fact that you have to autoattack to deal damage. Ya, it's nice but not great. In lane, even with a cutlass, don't have the attack speed or damage to life steal that much, so while the support isn't going to kill you, your assumption that you will somehow still be at full health is incorrect.