Path of Exile 1 Gameplay Help and Discussion - What skill has the absolute highest base crit chance hit per second? - Forum

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QcRevo wrote:

Crits for attacks are affected by accuracy, if the point is to get the most crits per seconds, you have to multiply the crit chance you see for attacks by (best case) 0,95^2. Didn't see anyone refer to it.

Which is why Lioneye's ranks so highly for crit builds. 100% chance to confirm the crit (and hit in general) and it has a pretty amazing attack speed.