We should add a new "Gate" to Darius's Q

I feel like the damage and cooldown is where it should be for a juggernaut style champion. I also feel like he is sufficiently tanky. However, the heal is unbearably oppressive with how inherently tanky he already is. I don't feel like just straight number nerfing the heal is the right answer, as he needs that at least once in a big teamfight to survive.

I suggest that we "gate" his heal in the same way that Yasuo's dash and Nautilus's root are gated, an independent static cooldown on each enemy hit. That way if he gets a big heal by hitting 2-3 champions midway through a teamfight, he won't be able to get a similar big heal again for ~10 seconds without moving to hit some different champions.

Thoughts?