I said mostly because I see a problem in a specific type of "proxies", which are those that try to replicate as perfect as possible an original card
With a few stipulations, you get complete control on what spells they cast, what lands to tap, what creatures they attack with, and when any of these actions are taken
With the ability to draw a card upon casting any Aura, Equipment, or Vehicle, activating this trigger is wonderfully simple
The card pool is constantly updated, making it ideal for staying in touch with the meta
Instead, the set will be sold in boxed and bundled products only
These bears still deserve recognition for their impact on the game, but they just aren't that strong compared to some of the more formidable ursids you could add