Talk:Vayne/@comment-187.41.96.20-20110605182626/@comment-3486816-20110620060528

crit does have diminishing returns in a sense, the same way dodge would if it stacked additively. If you have 50% crit chance and on a given hit you would have critted with only 30%, that extra 20 (that you paid good gold for) does absolutely nothing for you (on that particular hit), so every point is slightly less effective than the one before. It can stack additively not only because of this, but also because stacking crit chance without AD is retarded, because you'll crit on every attack, sure, but you still won't be doing much when you do. Carries need a balance of AD, Aspd, Armor Pen, and Crit to maximize dps (depending on what they get from abilities, partially. Vayne, for example, gets AD from her ult and her Q resets her autoattack timer, so she can focus on crit or armor pen because she gets free AD and Attack Speed (in a sense), whereas Tristana can almost ignore attack speed altogether because she has a 90% buff for it, allowing her to focus on the other factors. So stacking crit chance on vayne isn't terribly stupid, but it's still a testament more to your team that you lost than to vayne herself or the crit chance mechanics.