While I wouldn’t oppose an absorb shield to help mitigate from some of the overhealing resto druid has, I worry it or our HoTs would have to be tuned to account for how powerful being able to invest GCDs now into healing later is. That’s basically the reason our HoTs are tuned so terribly already; our mastery allows our healing to spiral out of control.
What I would like to see instead is for our HoTs to store some amount of overhealing to be applied whenever the HoT expires or is refreshed within pandemic, the same way Lifebloom does (except for the dispel aspect). This way we’d still get value from the overhealing but we’d be limited in how much we could get.
This is a bit of a shameless plug, but I created a post a week and a half ago about changing our mastery where I included this piece as a part of our mastery. This was my mastery idea, and whether they do anything to our mastery, they could add the stored healing blooms as a talent option in the resto tree instead:
Mastery: Flourishing Blooms
Your healing over time effects tick (mastery)% faster and last for (mastery)% longer. Up to (mastery)% of overhealing caused by your healing over time effects will be stored on the target, blooming when the effect expires or is refreshed with less than 30% of its original duration remaining.
I like the idea. Blizzard would have to figure out a way to rebalance the bloom aspect of the spell in general and for Verdancy. But I’m certain that could be worked around fairly easily.