I reduce Abyss Ragnarok to 2 instead of 1 in this build and have removed Thomas and replaced them with D.D
While most of these were given away as gifts, very few now remain in good condition
While there is now some discussion over the best Bob, given that we now have Dark ConfidantDark Confidant, Keen DuelistKeen Duelist, and the newly minted Caustic BroncoCaustic Bronco, there's no question that this deck and many others like it will want several of them
Pretty much all Sultai decks have a Graveyard theme so Muldrotha, the Gravetide works wonderfully both as part of the 99 of basically any deck or as a build-around-me commander
If so, you're looking for a control commander, the master manipulators of the battlefield, the ones who can shut down opponents' strategies and turn the tide of the game in your favor