I've never had so much trouble healing a tank as I did just now. They were generally well-geared and I didn't notice any weird cooldown usage. Heck, I push Thancred to do full pulls in Holminster Switch all the time, and I barely use resources. But today, just now, I legit ran out of resources and had to resort to diagnosis spamming and we still wiped twice. And our DPS wasn't even bad, things were dying fast. Just a really, really weird run. :P