Baneslayer's protection was quite pertinent and it's lack of legendary status meant you could drop more than one
There are the oddball Jenny cards like Lantern of Undersight and One with Death that could be thrown into a random set, though neither probably should ever be printed
Theres also one key part of the equation: removing Jetmir
Those decks need Mox Amber and Retraction Helix to go off, so how about putting the fourth one of each in the sideboard given that you have stuff like Kinnan, Bonder Prodigy to give you a lot of mana
It includes Black Lotus, the five moxen (like Mox Sapphire), Ancestral Recall, Time Walk, and Timetwister
Additionally, this is a good enabler for discard-based strategies, which is one of Aetherdrift s main themes