Magic is the lifeforce of all living creatures, and it is from it that all life is made - in areas with lots of undead, magic might actually be missing or weak, which puts a whole new spin on how dangerous the undead are. Even simple zombies can be troublesome if you're relying on mages and you hit a pocket of undead making a low-magic zone...
In your world the pantheon is a rotating system of formerly human individuals. You have been selected for god-duty for the next 2,000 years. How are you going to get out of this?