User blog comment:Care Level/Fucking Sightstone, Man./@comment-3271569-20140424171618

No, every role so his own core items & their is already an variation in their first core item.

Giving the sightstone build variations has been suggested before but that you need to think about this:
 * Giving it other stats might make the sightstone an core item on non supports. It's actualy already an core item on champs like lee sin.
 * Any champion would be able to play support that don't care on protecting their adc since they will deal damage anyway. Do we really want an jax support...
 * Certain supports already have an lot of killing power (annie for example). Giving her even better stats will make her an monster.

The only thing I can agrea on is the functionaly of an primary tank support. You can change it how you want but unless you can the shield on yourself you wouldn't be able to function as an tank like an tanky top or jungler would be able to.