For me, finding commanders which really spoke to me, ones I could create my own unique expression with, have always been a strong driving force
as one of the best Dimir commanders, you could also go reanimator or even mill
Control the board with Aetherize or Infernal Grasp, and finish off your opponents by swinging with a massive army of evasive 9/9 Wraiths
Before Flash was banned, these two were considered to be tier 0, meaning that they were the optimal duo to play in nearly all situations
As with most Prowess decks, this added option hugely increases the decks viability
1 Belle: Strange But Special Belle: Strange But Special is strong on two fronts, enhancing the possibilities of generating ink and lore at the same time