Adventures in the Forgotten Realms Set Boosters contain: At least 1 rare or mythic rare card (approximately 27% of Set Boosters contain 2 rares or mythic rares, 3% contain 3, and it's even possible to open 4 though that's less than 1% of the time.) 1 Traditional foil card of any rarity 1 Rulebook, module, or borderless common or uncommoncheck out the Collecting Adventures in the Forgotten Realms article for details
Mill Mill decks decks put opponents' cards into their graveyards
She can also wipe smaller bodies off the board pretty well, which is always handy
It's also important to note that Marneus's draw effect is not a 'may' ability, and many of our token-producers can be triggered by opponents, so we can lose to your own hubris which, in my opinion, is the best way to lose in Commander
You dont need Omniscience or Shark Typhoon in every deck