Immunity to Death Effects: You're immune to death effects. This keeps you from being automatically killed or from having your dying value automatically increase, but it doesn't make you immune to other parts of the spell or effect. For example, you can still take mental damage and become frightened by a phantasmal killer, you just don't instantly die from it.
I recently learned that Phantasmal Killer only targets 1 living creature. Same for Vision of Death. Meaning that even if PK didn't have the death trait, it would still fail to target nonliving creatures. Did the author of this rule not know? Or are "Targets 1 living creature" spells supposed to work against the undead?
There are more ways to become immune to death effects than being undead. Can the spell target an undead? No. Can it target someone protected by a death ward? Yes.
