Thoughts/Nerf Suggestions to New Doran's Shield

First off, I absolutely love the changes to Doran's Shield. I have been using + as my starting item on Garen because it offers the best regen when going 12/18/0 masteries.

Here are some charts to back it up: http://i.imgur.com/ZlZRN9s.png

With the changes to Doran's Shield, Garen and other top lane champs can smoothly survive through the early game. However, this item might even be picked up by the bottom lane. Imagine a weak early ADC with this item with a support. Seems like the lane became even more cancer? Well there is a way to avoid this.

Here is the current change on the PBE : Unique Passive: Gain an additional 200% Base Health Regen Health for 10 seconds after taking damage from an enemy champion.

This what it could be instead: Every time you are healed or shielded by an ally, the unique passive is now only 10 x (Champion level) as effective. This lasts while the shield is active and continues for 5 seconds after the shields is destroyed or wears off. The passive becomes 100% effective at level 10.

So this directly affects bottom lane, while not affecting the other lanes. If at level 3, your jungler, say , comes up top lane and heals your top laner, then the passive would be only 10 x 3 = 30% as effective, or 30% of 200% = 60% additional base regen for the next 5 seconds. Then the jungler leaves and everything is back to being the same.

By mid game, the top laner is already around level 9-10, so when they get healed or shielded, it will be 90-100% as effective.

If both the adc and support pick up this item, then it can be made so the person healing or shielding and the one receiving it get the reduced effectiveness.