Aminatou's Augury

If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs, such as evoke costs. You can, however, pay additional costs. If the card has any mandatory additional costs, such as that of Tormenting Voice, those must be paid to cast the card.

If you wish to put a land card onto the battlefield, you do so while Aminatou's Augury is resolving, before you're allowed to cast any of the other cards. You may do this even if you've already played a land this turn.

If a spell has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.