We did see a mechanic that I feel is underappreciated: Disturb
From this perspective, you should buy every Secret Lair drop, whether you actually want it or not, knowing that you'll basically break even most of the time, while not-that-infrequently, you'll hit an above-average drop and double your money
There is a chance that Ultima is too slow against Prowess, but if control decks can construct themselves to routinely survive until turn five, Ultima blows them out
It's great for going wide fun times
Legendary Creature - Rogue Aetherborn Color tag templates(None) Halo Forager Flying When this creature enters, you may pay
Creature - Shapeshifter Color tag templates(None) Jhoira's Familiar Flying Historic spells you cast cost less to cast