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
Cynthia's Ambition and Roseanne's Backup both come in Rainbow variants, too, which have been reported as having pull rates of nearly 1/1000
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
When it enters, you get a 0/4 Wall creature token
PHHY-JP054 Tallyho
First of all, discarding cards is not always necessarily bad, depending on what you discard, of course