User blog comment:Jens Ingels/Support Health Itematisation/@comment-24648781-20151115090312

I like the items. As for the second item´s passive, I think you should give it the "on kill or assist" tag instead of only the assist (don´t want to punish supports for securing an otherwise escaped champion even at their own risk) and introduce a certain CD on the ability or guarantee that it cannot stack itself if multiple assists or kills happen in short order (teamfights).

As for the first item, i would be a bit more offensive in giving it a flat amount of heal, scaling through the game (like 50-250 hp) but only on damaging abilities or basic attacks against champions. (you should not get healed by running on an empty lane and popping a black shield on the adc that´s heading towards farming. just because you AA´d a minion twice before.) Also, like LbP said below me, 100% health regen on item A would be prefectly fine, i think.