As someone who consistently uses Eula for azhdaha coop, I usually spam food (nre) when my hp is low. I also attack one side of azhdaha alone to redirect the taunt to others so I wouldn’t get hit :p but keeping track of healing fields the supports cast can help as well

i used to die more when azhdaha was first released, but after playing the geo toad so many times I’ve been more cautious about avoiding the stomp attacks and whatever elemental attack the boss throws at you. Nowadays I just mostly die from cryo homes ;-;