Dies to Removal

So I started thinking about a new deck to build for "guild wars," which is an EDH format we're going to be playing where basically you can only play commanders in the colors of Ravnican guilds. I picked Rakdos, and although Exava jumps to the front of the mind immediately, I did a little searching and found Lyzolda, the Blood Witch, and she seemed interesting.

This is what I came up with thus far, but I'm open to suggestion.

[deck]Lyzolda does things.[/deck]

Any reason you're playing Diabolic Tutor over Demonic Tutor or Diabolic Intent?

Also, I'd play the Swords. In a format where everyone's Commander has to be Guild colors, Protection for X and Y seems real legit.

Needs moar cauldron dance

Also does the commander have to be from a ravnica set, or just 2 colors?