The only reason I wouldn't use this card is because I don't like Aether. If I used Aether, she has several advantages. I hear a lot about Anubis being better, but you have to run for that. This only requires Aether, and can constantly make things immaterial, backed up by pretty good stats, and Aether tends to quanta ramp anyways, so quanta's not a big issue.
you also forgot that Anubis can benefit a lot from SoR, so you dont really need
to run it, and because its a
creature, it can use its skill twice, making it immaterial the turn it enters the field and another creature at choice, making it much more useful in most situations