Hi! Sorry for the slight necro, but I'm doing this for Phase 1 of the Death Trials. This certainly seems like a fun deck! An OTK deck like this one is always going to take time to set up, so while the execution should be fine, the long lead up to it can make you very weak to decks that spam creatures or start off quickly. Skull bucklers will catch a few lower health creatures and you can use a few plagues in the beginning, but this probably won't slow damage that much. With that in mind, I would suggest adding a few Shards of Sacrifice to stifle incoming damage for a few turns. These could be added at the expense of a few Bone Towers, as you seem to have a bit of a quanta excess here. The deck could also use a soul catcher + Ivory Dragons combination to add to the OTK nature. This is not necessary, but might help to complete the OTK in case you do not have all of the Condors out on the field by the time you complete the OTK combo. With these suggestions the deck could look something like this:
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710 710 710 710 710 710 710 710 710 711 711 714 714 714 714 714 715 715 719 719 719 719 71c 71c 71c 71c 71c 71f 71u 71u 71u 8pk
This again doesn't solve the mono-aether weakness, but a deck like this isn't setting out to beat a specific deck like that. It'll accomplish its goal fairly well against most decks, and it'll be fun. I like it!