Diablo 4 originally launched with a set of powerful 'uber' unique items that were so rare Blizzard had to come out and confirm that they were real. Only a handful of people in the world ever even saw one, which meant they effectively didn't exist for most players.
Even though Blizzard has been steadily making 'uber' uniques, now known in-game as mythic uniques, more attainable over time, they're still a chore to find. To raise the odds, you have to gather up materials to summon and defeat its endgame bosses repeatedly and pray the RNG is in your favor. That ends with Diablo 4's first expansion, Vessel of Hatred, where mythic uniques will finally be significantly easier to get—with one small catch.
