The cards inside the box could either be loaded on towards the top of the box or the bottom, much like the other theme decks
Hitting artifacts will help set it apart as that is something the other black wraths cannot do and can make it incidentally way higher impact against some decks like Rakdos Monument
Consider some of the vicious things you can run: Elspeth, Sun's Champion, Enter the Infinite, Omniscience, Darksteel Forge, or Dragonstorm
Card prices are driven by supply and demand, but also by history, rarity, collectability, tournament relevance, and formats like Vintage, Old School, and Premodern
If I have access to the best mana rocks for my Commander deck, I should usually prioritize those over any situational ramp spells, but use my best judgment when comparing them against my best mana ramp options