Hmm... I don't think the name itself is a priority, and i want to use the Cut | Slash theme for the series in general, so a way to explain why it targets all creatures would be kinda hard.
Thing is, Fire Storm does NOT actually damage immaterial creatures, for some strange reason. Neither does Plague. Since Time is an Enemy Element to Aether, it'd make sense that Time has developed a way to pass through Aether's Strenght, wouldn't it?