It can work especially well with Thassa, Deep-Dwelling, giving you a chance to proliferate multiple times each end step
While it does shut down the synergy with Brinelin, cards like Belbe's Portal and Aetherplasm can be used to play our biggest creatures for much cheaper costs than normal
Cemetery Gatekeeper, Kessig Wolfrider, and Voltaic Visionary all made my long list, but realistically theyre closer to fine than great
Questing Druid Im high on Questing Druid because its a Quirion Dryad mixed with a worse Reckless Impulse
Ayara, First of Locthwain Ayara, First of Locthwain is an excellent aritsocrats card in black-heavy decks
It's a pretty good deal - in fact, in a funny way you could say that card bans are one of the main free sources of wildcards on the platform