アーティファクト
税血の刃が戦場に出たとき、各対戦相手はそれぞれクリーチャー1体を生け贄に捧げる。
クリーチャーで作製


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, このアーティファクトを追放する, あなたがコントロールしているクリーチャーやあなたの墓地にあるクリーチャー・カードである1つを追放する:このカードをオーナーのコントロール下で変身させた状態で戻す。作製はソーサリーとしてのみ行う。)
アーティファクト
あなたのアップキープの開始時に、各対戦相手はそれぞれ1点のライフを失い、あなたは1点のライフを得る。
If a card that isn't a transforming double-faced card becomes a copy of a card with craft, it'll stay in exile if you activate the craft ability. It won't return to the battlefield.
If the materials required include multiple objects, you may exile some of them from among permanents you control and the rest from among cards in your graveyard. You don't have to choose all permanents or all cards from your graveyard.
The back faces of some cards with craft refer to cards "used to craft" it. This refers to the cards exiled as part of the cost of the craft ability of the front face. Those cards are considered to be "used to craft" that permanent as long as they remain exiled and the permanent remains on the battlefield, even if the permanent's controller changes or some of its characteristics change (because of a copy effect, for example.)
You may exile tokens you control as part of the materials required. However, because they aren't cards and won't stay in exile, any abilities that refer to what you "used to craft" the back faces won't refer to anything.