Herrscher des Düsterelends

Unheilsdrohend 5 — {1}{B} (Falls du diesen Zauberspruch für seine Unheilsdrohend-Kosten wirkst, kommt er mit fünf Zeitmarken ins Spiel und ist keine Kreatur, bis die letzte entfernt wurde. Entferne zu Beginn deines Endsegments eine Zeitmarke davon.)
Immer wenn der Herrscher des Düsterelends ins Spiel kommt oder angreift, millst du vier Karten, dann kannst du eine Nicht-Avatar-Kreaturenkarte oder eine Planeswalkerkarte aus deinem Friedhof auf deine Hand zurückbringen.

Amo de Oscuridad Lóbrega

Inminente 5—{1}{B}. (Si lanzas este hechizo por su coste de inminente, entra con cinco contadores de tiempo y no es una criatura hasta que se remueva el último. Al comienzo de tu paso final, remueve un contador de tiempo de él.)
Siempre que el Amo de Oscuridad Lóbrega entre o ataque, muele cuatro cartas y luego puedes regresar una carta de criatura que no sea Avatar o una carta de planeswalker de tu cementerio a tu mano.

Suzerain de Sombreur

Imminence 5 — {1}{B} (Si vous lancez ce sort pour son coût d'imminence, il arrive avec cinq marqueurs « temps » et ce n'est pas une créature avant que le dernier soit retiré. Au début de votre étape de fin, retirez-lui un marqueur « temps ».)
À chaque fois que le Suzerain de Sombreur arrive ou qu'il attaque, meulez quatre cartes, puis vous pouvez renvoyer dans votre main une carte de créature non-Avatar ou une carte de planeswalker de votre cimetière.

Sovrano del Buiostile

Imminente 5—{1}{B} (Se lanci questa magia per il suo costo di imminente, entra con cinque segnalini tempo e non è una creatura finché non viene rimosso l'ultimo. All'inizio della tua sottofase finale, rimuovi un segnalino tempo da essa.)
Ogniqualvolta il Sovrano del Buiostile entra o attacca, macina quattro carte, poi puoi riprendere in mano una carta creatura non Avatar o una carta planeswalker dal tuo cimitero.

ベイルマークの大主

兆候５ — {1}{B}（兆候コストでこの呪文を唱えたなら、これは時間カウンター５個が置かれた状態で戦場に出て、最後の時間カウンターが取り除かれるまで、これはクリーチャーではない。あなたの終了ステップの開始時に、これの上から時間カウンター１個を取り除く。
ベイルマークの大主が戦場に出るか攻撃するたび、カード４枚を切削する。その後、あなたの墓地にありプレインズウォーカー・カードやアバターでないクリーチャー・カードである１枚をあなたの手札に戻してもよい。

Overlord of the Balemurk

Impending 5—{1}{B} (If you cast this spell for its impending cost, it enters with five time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.)
Whenever this permanent enters or attacks, mill four cards, then you may return a non-Avatar creature card or a planeswalker card from your graveyard to your hand.

Duskmourn: House of Horror

Impending 5—{1}{B} (If you cast this spell for its impending cost, it enters with five time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.)
Whenever Overlord of the Balemurk enters or attacks, mill four cards, then you may return a non-Avatar creature card or a planeswalker card from your graveyard to your hand.

"Impending N–[cost]" is a keyword that represents multiple abilities. The official rules are as follows: (a) You may choose to pay [cost] rather than pay this spell's mana cost. (b) If you chose to pay this spell's impending cost, it enters the battlefield with N time counters on it. (c) As long as this permanent has a time counter on it, if it was cast for its impending cost, it's not a creature. (d) At the beginning of your end step, if this permanent was cast for its impending cost, remove a time counter from it.

If an object enters as a copy of a permanent that was cast with its impending cost, it won't enter with time counters, and it will be a creature.

If you choose to pay the impending cost of a creature spell, it's still a creature spell on the stack. You can cast that spell for its impending cost only when you could normally cast that creature spell. Most of the time, this means during your main phase when the stack is empty.

If you choose to pay the impending cost rather than the mana cost, you're still casting the spell. It goes on the stack and can be responded to, countered, and so on.

You may return any non-Avatar creature card or any planeswalker card from your graveyard to your hand with Overlord of the Balemurk's last ability, not just one you milled while resolving that ability.