Palantr of Orthanc Palantr of Orthanc presents foes with a choice that gets worse every passing turn, and can of course be made even nastier if you have effects that can put extra counters on it
Thankfully, there really isn't much of a price difference between cards listed as damaged and as heavily / moderately played, in many cases
Afterwards, you can use cards like Risk Factor or Experimental Frenzy to finish the game off
Storm the Vault / Vault of Catlacan can slot into Izzet decks that focus heavily on slinging instants and sorceries, but it truly shines with artifact- or Treasure-matters commanders like Galazeth Prismari (or Breya, Etherium Shaper, if we expand the color palette)
If this spell was cast from a graveyard, instead create X of those tokens, where X is the number of creature cards in your graveyard
while Olivia, Mobilized for War isnt the best commander ever, they at least tie into the madness subtheme you can have when playing Vampires