Tenacity

[Esmoire]

I'd say Tenacity is pretty close. It doesn't necessarily have to be the raider's favourite, but I think honestly it's not good for the average tank doing her DF runs and stuff, either. Maybe make it 30 per 0.1%, rather than 33, to start. Or better yet, decouple the damage and healing from the mitigation. Like, if it was, say, 16 for 0.1% DR, 32 for 0.1% damage, it would make it better at mitigation with minimal disruption to damage. Worth noting is that, as it's hard to avoid having a little tenacity in your gear, it would inherently make all tanks a little more sturdy by tampering with the stat directly.

Piety... yeah that one needs help. My friend who plays a lot more healer than I thought it could be cool if it gave you a bonus like DH for heals or something. In FFXIV, pound-for-pound damage is supreme, though at some point defensive benefits can yield opportunity cost via stability or reducing need for resources like oGCD heals so I don't think better utility/defensive stats are impossible.