Outside of the two Aetherdrift Commanders, Hildibrand would also work in a Varina, Lich Queen deck
9 Azusa, Lost but Seeking Azusa, Lost but Seeking is a three-mana 1/2 that lets you play two additional lands each turn
Upon release, this set sold over $200,000,000 of product, and it hardly stopped there
And unlike Progenitor Exarch, all she needs is to enter the combat step to transform every single Incubator token you have on the field for free
Opponents might expect blue to focus solely on control, but by integrating ramps, you catch them off guard and diversify your strategic options
Leonardo, Sewer Samurai's base cost is one White mana and three colorless, but the sneak cost is two White mana and two colorless, so the overall amount doesn't change, but the structure does