Just for clarification, I was reading the alternate text to {serene heart} and it dawned on me, is there no difference between local and global enchantments now. I seem to remember that serene heart would kill things like unholy strength but would leave things like {mana flare} or "global enchantments" alone. Is there no distinction now as they are all considered "auras" now? It surprised me that the alt. text says destroy all auras which is what all enchantments are now classified as? I hope this makes sense...lol
It has to say "Enchantment: Aura" in the type line. Compare {Oblivion Ring} to {Spectral Flight}.
Aura is a sub-type of enchantments. Usually attached to a target player or creature.
The old school versions used to say "enchant creature" or "enchant artifact". See the {Armadillo cloak} from invasion.