Question for healers about GNB

[Miziliti]

I assume you are talking about dungeon run because healing GNB is a breeze in boss fight. I love GNB and got a lvl 80 one myself.

The biggest thing I have to tell new GNB is to please use Rampart on your very first big pull, please. With 20% mitigation, I can actually heal you and dps.
Please prioritize Rampart over Camouflage. Camouflage's 10% mitigation really is weak and that parry is still quite useless if you are not the guy that carries a shield <_<

Use Heart of Stone whenever possible. This is one of the best tank defensive cool down.

Don't forget Nebula. When everything is on cd, anything helps.

Superbolide should be no problem for any healer to deal with, really. It is 8s complete invuln, no damage taken and you don't die. Miles ahead of holmgang and 1000% better than living dead. I guess some healers hated it because you either use it on >10-20% hp or they don't know when you use it, so make a macro to announce it when you use could really help. Use it when you think you might die, and you might just lived.