User blog comment:Care Level/Itemization Holes/@comment-4636093-20130825061718

Diamond Sightstone wouldn't work, you can't really give the ability to clear out wards whenever. Ward clearing needs to be an expensive and non-perminant investment. Otherwise your team would have no vision.

It's the same problem the old Oracles used to have, as long as you were alive the enemy couldn't place wards.

And we're not exactly trying to make Riven and Zed MORE powerful.. If they stack Bloodthirsters now, then imagine what they'd be like with a tailor made item for them.

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There IS a hole in itemization, however not one you covered. An AD mana/mana regen item, Manamune is next to useless, even on people who desperatly need mana like and. Blue Ezreal only builds it because the toggle of a fully charged Muramana adds a lot of damage to his Q, he doesn't need the mana at all.

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Also a lot of Dota item names in there heh. :B