セヴィンの再利用
ソーサリー
あなたの墓地にありマナ総量が３以下であるパーマネント・カード１枚を対象とする。それを戦場に戻す。この呪文が墓地から唱えられたなら、この呪文をコピーしてもよく、そのコピーの新しい対象を選んでもよい。
フラッシュバック
（あなたの墓地にあるこのカードをフラッシュバック・コストで唱えてもよい。その後、これを追放する。）
Illustrated by
Outlaws of Thunder Junction Commander#86RareJapaneseLegality
Rulings
A permanent card is an artifact, creature, enchantment, land, or planeswalker card.
If a card in a graveyard has 
in its mana cost, X is considered to be 0.
If the target card is an illegal target by the time Sevinne’s Reclamation tries to resolve, the spell doesn’t resolve. You won’t copy it if you cast it from a graveyard.
The copy that Sevinne’s Reclamation creates is created on the stack, so it’s not “cast.” Abilities that trigger when a player casts a spell won’t trigger. The copy wasn’t cast from a graveyard, so it won’t make another copy of itself.
If you cast Sevinne’s Reclamation from your graveyard, any abilities that trigger as the permanent card returns to the battlefield will resolve before the copy of Sevinne’s Reclamation resolves but after new targets for the copy have been chosen.