Summary: What's better than one super rare imperial stout? Four of them! For their 15th anniversary, three floods combined their motor-oil thick Russian Stout, Dark Lord, with three other top-tier RISs: Surly Darkness, Mikkeller Beer Geek Brunch, and De Struise Black Albert. Is the finished product better than the sum of its parts? Let's find out! A big shout out to super-fan Ben for providing the liquid.