Ethereal Valkyrie

Although the card you exile becomes foretold, you did not foretell it. An ability that triggers whenever you foretell a card will not trigger.

The reduction of the foretell cost applies only to generic mana in the foretell cost. It can’t reduce requirements of specific colors of mana. For example, if you foretell a card in your hand with mana cost 1 generic mana green mana green mana , its foretell cost will be green mana green mana .

If you’re casting a foretold card from exile for its foretell cost, you can’t choose to cast it for any other alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, those must be paid to cast the spell.