I haven't healed anything since Wrath on my Priest, in fact I have basically no fucking idea what half of my Holy spellbook even does. But we were waiting for 35 minutes for a healer for Drov the Ruiner (only doing it for the Pepe toy obviously) and I was like "fuck it, let me try but if people die sorry because I haven't done this shit in like 8 years." So I switched specs, had absolutely zero situational awareness at all to avoid any of the crap, somehow managed to not let anyone die, and laughed my ass off the whole time because I still don't even know what the fuck I was doing.
So glad everyone overgeared the fuck out of that enough to let me try that. I think I feel even more comfortable tanking at this point than healing. Wow. My 2009 WHM would be so ashamed of me.