User blog comment:Yorukin/Need Some Clarity Here!/@comment-24036535-20141114031543

As a note on Zilean and Vladamir: Vlad sends out blood spurts to any target which is hit, which would be, in my opinion, all the clarity he needs. Zilean's time bomb displays a buff (I'm fairly sure) in above the ability bar, and tints the screen slightly, showing you've been ulted.

As for some of the listed abilities, you mainly want something to indicate range, going into the control menu, and mapping all your abilities to quick cast will give you range indicators if you hold down the button. As a distinction: Smart cast does not do this, and is mapped out by selecting to icon below the large QWER etc buttons at the top of the controls page. Quick cast is mapped by going down on the page to "Abilities", and is generally used for precise aiming.