Turret Proximity related items

I was kicking a few ideas around relating to summoner-turret interactions.

Option A Given that the defending summoner is both within the turret's proximity and in range of at least one minion; once activated, for each minion that dies by way of the turret, the defending summoner is healed | shielded for each minion sacrificed. Duration 1.5s --cons-- gold loss

Option B Given that the defending champion is solo; Given that there are at least two enemy summoners within the turret's proximity, the defending summoner may actively designate the turret's target (Alt + R click). While active, minions drop focus from the turret. Duration 1.5s --cons-- you might die anyways! you're getting ganked! Also, minions hurt.

Doran Item series enhancements? New items? Good ? Bad? What do you think?