I have talked about many Commanders and how they support specific archetypes, but what makes K'rrik, Son of Yawgmoth so powerful, even surpassing his father, is that K'rrik can truly do whatever he wants
Even if it doesnt, youll likely leave them with so little life that a single burn spell or Haste creature can finish them off on turn four
Somewhat similarly to Venerated Rotpriest, Hand of the Praetors is able to apply Poison Counters without attacking
When I make a tribal deck, I first look for creatures of that type (on the type line), then I refer to this list, then I take a look at the Tribal and Creature Type list
Lord Skitter's Butcher is ideal for black-red or white-black "aristocrats" decks, whether or not they're Rat typal decks