Lähmendes Lied

Verzaubert eine Kreatur oder ein Fahrzeug
Wenn das Lähmende Lied ins Spiel kommt, kannst du zwei Karten millen. (Du kannst die obersten zwei Karten deiner Bibliothek auf deinen Friedhof legen.)
Bodenloser Abstieg — Das verzauberte Permanent erhält -X/-0, wobei X gleich der Anzahl an Permanent-Karten in deinem Friedhof ist.

Canto estupefaciente

Encantar criatura o Vehículo.
Cuando el Canto estupefaciente entre al campo de batalla, puedes moler dos cartas. (Puedes poner las dos primeras cartas de tu biblioteca en tu cementerio.)
Descenso abismal — El permanente encantado obtiene -X/-0, donde X es la cantidad de cartas de permanente en tu cementerio.

Chant de stupéfaction

Enchanter : créature ou véhicule
Quand le Chant de stupéfaction arrive sur le champ de bataille, vous pouvez meuler deux cartes. (Vous pouvez mettre les deux cartes du dessus de votre bibliothèque dans votre cimetière.)
Descente insondable — Le permanent enchanté gagne -X/-0, X étant le nombre de cartes de permanent dans votre cimetière.

Canto di Stupefazione

Incanta creatura o Veicolo
Quando il Canto di Stupefazione entra nel campo di battaglia, puoi macinare due carte. (Puoi mettere nel tuo cimitero le prime due carte del tuo grimorio.)
Discesa insondabile — Il permanente incantato prende -X/-0, dove X è il numero di carte permanente nel tuo cimitero.

麻痺の歌

エンチャント（クリーチャーや機体）
麻痺の歌が戦場に出たとき、あなたはカード２枚を切削してもよい。（あなたのライブラリーの一番上にあるカード２枚をあなたの墓地に置いてもよい。）
底なしの落魄 ― エンチャントしているパーマネントは－Ｘ/－０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。

Canção da Estupefação

Encantar criatura ou Veículo
Quando Canção da Estupefação entra no campo de batalha, você pode triturar dois cards. (Você pode colocar os dois cards do topo de seu grimório em seu cemitério.)
Descida insondável — A permanente encantada recebe -X/-0, sendo X o número de cards de permanente em seu cemitério.

迷魂曲

结附于生物或载具
当迷魂曲进战场时，你可以磨两张牌。（你可以将你牌库顶的两张牌置入你的坟墓场。）
落坟无边～所结附的生物得-X/-0，X为你坟墓场中的永久物牌数量。

Song of Stupefaction

Enchant creature or Vehicle
When this Aura enters, you may mill two cards. (You may put the top two cards of your library into your graveyard.)
Fathomless descent — Enchanted permanent gets -X/-0, where X is the number of permanent cards in your graveyard.

The Lost Caverns of Ixalan

Enchant creature or Vehicle
When Song of Stupefaction enters the battlefield, you may mill two cards. (You may put the top two cards of your library into your graveyard.)
Fathomless descent — Enchanted permanent gets -X/-0, where X is the number of permanent cards in your graveyard.

Cards with the ability word "fathomless descent" have abilities that care how many permanent cards are in your graveyard.

If you don't have at least two cards in your library, you can't choose to mill two cards.

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.

The value of X will change as the number of permanent cards in your graveyard changes.