What I like to do is watch the tanks buffs/debuffs in the party list and remember the colors for living dead. You have 10 seconds of the very red buff with the hourglass in it before it procs to walking dead(grey debuff) at 1 hp. You see the red thing just heal it so it doesn't proc. You dont necessarily have to waste all your resources to do this sometimes a whispering dawn and Aldo+soil or recited excog could stop it. It's a wasted cooldown for the tank but you didnt have to waste all your resources on that one CD just to stop a possible wipe. Also if you are even on whm and it happens you have 10 whole seconds of them at 1hp for that bene to hit so spam more holy.
