Rishkars Expertise Rishkar's Expertises design might not be anything new these days, but it was pretty unique when it was first printed
The main points seem to be that the two booster types caused market confusion, draft boosters weren't selling well, and this both split the player base and caused problems for stores
Minthara, Merciless Soul Dont let the experience counters fool you, this isnt an old precon commander
Leyline of Abundance makes your mana-producing creatures even more efficient and has some late-game pump value
Then for each nontoken permanent attached to it, create a token thats a copy of that permanent attached to that creature
And as the next generation of cards begins appearing on store shelves, the previous generation tends to sell out