I don't believe there is a Fey Dusk? Fey Caress (AoE esuna) is extremely useful and would not like it to be changed.

Silent Dawn (selene's silence) I find to be pretty useless in most content. I think changing it (and therefore the name too lol) to some type of minor magical reduction would be better instead. Like, reduces INT on a target by 5% for 4 seconds, or reduces magic potency by 3%, just so it'd be helpful on magical AoEs which have a lot of in Alexander.