Milling with Jidoor, Aristocratic Capital has been a dud for me as a wincon because half the deck, even multiple times
While Fate Reforged was the last set that delve headlined, Wizards has continued experimenting with the mechanic over the years, particularly in sets with higher power levels
There may be a couple of terms you are unfamiliar with here, but this reading assignment should elucidate the matter
Its not that Umezawas Jitte just wins the game on its own, rather, its because it provides its player with constant boons
Then, when they enter the battlefield, either each other Creature gets -X/-X until the end of turn, and you lose X life, or you can return up to X Creature cards with a mana value of X or less from your graveyard to the battlefield, and then give them haste until the end of turn
Deus of Calamity Deus of Calamity sees play in the so-called Ponza decks, which try to ramp into land destruction and keep making land drops while limiting their opponents