Can we get a Reverse Warmogs?

Just a simple Tank item. But instead of giving out of combat health regen, it gives IN COMBAT health regen. Make the in combat status last for about 3 secs and get stronger over time, so it doesn't work as a poke mitigation tool. Or rather make it only work when dealing damage. To prevent Juggernauts abusing the item that much, make it interact with Armor/MR instead of scaling with health. Maybe making the heal based on your Bonus Armor and having the item giving no health at all, similar to Frozen Hearth and Thornmail.

I don't know, it was just a random brainstorm when I was thinking about Tanks not feeling that tanky anymore.