Warmogs change made it weird
The Warmogs change in the Preseason made the Item rather weird for me. First it seemed to function like Garens passive, but I never tried it, because I don't play tanks that often. But last week my friend told me the Passive timer for the 3% max HP regen would be procced by minions and monsters. Now I believe that makes the Item rather useless to buy since most other tankitems simply have a higher value in stats and fill an Itemslot much better than with a 2500G 800 HP 1%HP/5 (up to 3%maxHP/5 when being useless, aka not farming, not fighting, not tanking)
I'd suggest either making the Passive right now not to be stopped by minions and monsters from going up to 3%maxHP/5 or adding a new Passive like Athene's Unholy Grail's underappreciated second Passive. It would look a little bit like this:
UNIQUE Passive: Restores 10% of your maximum Health over 5 seconds on kill or assist.
Discuss...
... but better.