Rituel
Renvoyez n'importe quel nombre de cartes avec des coûts convertis de mana différents depuis votre cimetière dans votre main. Mettez les Saisons passées au-dessous de la bibliothèque de son propriétaire.
If a card in your graveyard has
in its mana cost, X is considered to be 0.
You choose which cards to return as Seasons Past resolves, not as you cast it.
The phrase "different mana values" compares the mana costs of cards in your graveyard to one another, not to Seasons Past. You may return a card with a mana value of 6.
A card with no mana cost, such as a land, has a mana value of 0.