Here is how I will nerf redemption:

So technically, my total purchase for Redemption as a gold-limited Support will be 3100 gold & the stat buff it gets from that is just a petty 200 HP, of which even a Ruby Crystal costs only 400 gold.

Might as well just rush Infinity Edge on Soraka instead.

But support is a gold limited role and this delays items more.

Although, support upgrades would be nice. I am sure someone wanting to nerf Redemption wouldn't agree, but at the end of game (if ever) with 6 items and extra gold (despite lower overall amount than others), it would be nice to funnel upgrade into slightly stronger versions of existing items. Obviously not too strong that rushing them makes sense, but just a small bonus for a large cost.

From the downvotes, id say your thoughts are cut down. However, if only you said that the range of its heal was cut in half..... People might go for that more.

I say this because i can stand in mid and easily have a global heal on whoever i want because almost nobody will be out of range.