チュパカブラの残響
クリーチャー — ビースト・ホラー・スピリット
底なしの落魄 ― チュパカブラの残響が戦場に出たとき、対戦相手がコントロールしているクリーチャー１体を対象とする。ターン終了時まで、それは－Ｘ/－Ｘの修整を受ける。Ｘは、あなたの墓地にあるパーマネント・カードの枚数に等しい。
もはや食らう必要はなくても、それは飢え続ける。
イラスト：
The Lost Caverns of Ixalan#97アンコモン日本語適正
裁定
Some descend triggered abilities include intervening "if" clauses (i.e. "if you have [four or eight] permanent cards in your graveyard" in the middle of the ability). Each of these abilities checks your graveyard at the moment it would trigger to see if it does. If you don't have the required number of permanent cards in your graveyard at that time, the ability doesn't trigger at all. If it does trigger, it will check again as it tries to resolve. If you don't have the required number of permanent cards in your graveyard at that time, the ability won't resolve and none of its effects will happen.
Cards with the ability word "fathomless descent" have abilities that care how many permanent cards are in your graveyard.