Ultimate League Bean Deck

I completely understand. I was right where you are before I made the switch. I felt the exact same exact same way. I loved Brainana, he saved my butt a lot of times! But after doing some testing I found DMD to be better overall. Brainana is situational at best. He's a great clutch tool and can really put a stumbling block on your opponent, but in the long run he pails in comparison to DMD. While Brainana helps you in that one crucial turn, DMD has the potential of influencing the entire state of the late game. All of a sudden it's not just the zombie's trick phase that's of concern, but the fact that DMD does 6 SPLASH damage! He becomes the single strongest bane of the entire zombie deck if you can protect him with a Cosmic Bean or something else. There's a reason why his image replaced Cornicopia's.

After I tested one DMD in my deck I knew it was such a bane to all zombie decks that I had to have two... But no more than two or you're asking to lose to aggro decks.