Recently, while playing against my brother, he challenged me to build a deck without blue.
I pointed him to my (unfinished) Tendrils deck that still beats him pretty much every game, and he quickly changed it to "a real deck". Now, although I'm not sure what that really means, I suppose it means combo. After I told him I would just build a quick (shitty version) of Sui Black, he decided to throw black into the mix.

The question is: Is it possible to make a good deck without using blue or black?
(Not counting Zoo - I know that's counter-intuitive to the question, but I really hate that deck.)