Also:
Lesser Death Aura's Fortitude listed save is never rolled for by enemies; it's as if it doesn't exist. Unsure about regular/Greater Death Aura.
Death Aura's description states that it damages/heals for 2d4 damage plus 1 per caster level, whereas in reality it damages/heals for 2d4 damage plus 1 per *TWO* caster levels. The "DnD dice" section also uses the incorrect formula. Similarly, Greater Death Aura says that it damages/heals for 3d4 damage plus 1 per caster level, whereas in reality it damages/heals for 3d4 damage plus 1 per *TWO* caster levels.
The description of Lesser/regular/Greater Death Aura makes it sound as if it is WAI for enemy Undead to be healed by it, whereas in reality it doesn't heal enemy Undead, and you (the devs) have ruled many times in the past that it's WAI for these auras to not heal enemy Undead. As such the "Undead are instead healed by the aura" clause should be changed to "Non-enemy Undead are instead healed by the aura".
All 3 versions of Death Aura say they tick every 3 seconds in the "main" description (true), but incorrectly say that they tick every 2 seconds in the dice section of their description.
For all 3 versions of Death Aura, once you go past MCL 20, only the duration increases, but not the damage/heal.
Certain plant-like-undead enemies (such as the Red Musk Infected and Needle Blights in Thralls of the Fungus Lord) get healed by Lesser/regular/Greater Death Aura, even though it has been ruled by you (the devs) that it is not WAI for these spells to heal enemy Undead.