I mean… it is the only legendary known (at this time) which is made of two other legendaries… it’s cool that it changes from twilight to sunrise based on time of day, but since legendaries are almost exclusively aesthetic, eternity should have another layer of “cool effect.”
Right now, having twilight and sunrise and swapping them out looks better (because of the footfalls) than just having eternity.
In short, eternity, because of its cost to make, should have better looking, cooler effects. Also, please add more second tier legendaries (two legendaries combined).