Just a quick question regarding the skill, i just play a lot of PvE, but what kind of creature or allies will death nova affect? Pets? Heros? Spirits? Minions - Yes obviosly
Keep in mind its a targetted enchantment (you have to manually cast on everything).
It works on friendly NPCs, Heros/Henchmen, and pets (not spirits since they can't be affected by enchantments or hexes).
That is a skill I put on a hero, to try to see when a person or minion is about to die and then cast that on them would take all of your concentration and you wouldn't be effective at anything else. Hero are so good at this that it is best to just leave it to them.