Quote Originally Posted by Kevee View Post
It doesn't reset the timer, only stop it. So every ~5 casts, more often with instant casts, you'll have an auto attack. My AA hits for 60-70, ~110 crits.

Also due to the server lag/netcode, auto attacks start queuing around 3/4ths of cast completion, and can also go off at that time.
Plus there is something special about hitting a big dragon with a book.