Eternal formats have long defined their identity and play patterns around breaking the mana curve, and cheap (or free) counterspells are one of the only things that can keep such explosiveness balanced
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
Beside it, your willpower is outlined in a shield and determines the amount of damage the character can receive before succumbing to its wounds and being placed in the Discard Pile
while Olivia, Mobilized for War isnt the best commander ever, they at least tie into the madness subtheme you can have when playing Vampires
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)