Take the March of the Machine: The Aftermath Epilogue boosters which have five total cards, no commons, and 1-3 of which could be rare or mythic
Khrn the Betrayer Kharn the Betrayer is high on this list, not because I think it makes for a good commander, but because its an exceptional addition to other Commander decks that I like
Illustrated by Joseph Meehan Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Yoni Skolnik, a principal game designer at Wizards of the Coast, said in a blog post that when the team approached the set, they were careful to find a way to let people enjoy their nostalgia without alienating everyone else that also honored the emotional resonance of the games. As such, the final product is full of little narrative Easter eggs that hint at, but never spoil, major plot beats from the games
Full-Art Dragon's Presence and Dragon's Eye Basic Lands Do you think that dragon can see us