In fact, there are a number of cards where only a handful of copies were ever printed, making them considerably more hard-to-find than the Illustrator
First of all, discarding cards is not always necessarily bad, depending on what you discard, of course
Arrange them so you can print multiple proxies on one page
If you read between the lines, for 4 mana on the first cast, you get to choose from 16 cards in a full-sized Commander table that then can be cast to assemble your remaining combo or just find the combo pieces you need to kill them on the next turn with, of course, Demonic Consultation + Thassa's Oracle
This is another key five-color identity Commander but easier to cast with a four-cost and just three of its colors
When it enters, you get a 0/4 Wall creature token