Some guy in my game said Vayne takes no skill
He was playing 
LOL
He was playing 
LOL
he's not wrong
He was playing
LOL
It's ironic. Both take no skill, unlike high octane skillful champions like Yasuo, Wukong, Mister Yi, and Garen.
Right clicking with the occasional pressing of the "r" and the "q" key is actually extremely mind-blowingly difficult. It took years of practice for me to perfect my master yi skills. I went into practice mode for like three hours for the past few months working on hovering my mouse on a target dummy while jitter clicking my mouse.
Vayne and Darius take skill. Different kinds of skill but skill.
Vayne only takes skill in the early game, once her late game hits you can be a monkey amputee with brain damage and still carry sheerly because her damage is so absurd
Vayne is easy to play.
It's not dying as her that takes skill.
Doesn't vayne completely invalidate darius?