巫術
將任意數量的牌從你的墳墓場移回你手上,且這些牌的總魔法力費用須各不相同。將時遷季移置於其擁有者的牌庫底。
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.