Blizzard finally went and did it: the Secret Cow Level is real in Diablo IV's Lord of Hatred expansion, and it's every bit as silly as the old rumours made it sound. You'll need the expansion before any of this matters, and if you're chasing odd trophies, strange rewards, or just more D4 items to mess around with, this is the sort of hidden nonsense that pulls you in for a whole evening. The funny part is that getting inside can be either laughab...