Herrscher der Schwemmgruben

Unheilsdrohend 4 — {1}{U}{U} (Falls du diesen Zauberspruch für seine Unheilsdrohend-Kosten wirkst, kommt er mit vier Zeitmarken ins Spiel und ist keine Kreatur, bis die letzte entfernt wurde. Entferne zu Beginn deines Endsegments eine Zeitmarke davon.)
Fliegend
Immer wenn der Herrscher der Schwemmgruben ins Spiel kommt oder angreift, ziehe zwei Karten und wirf dann eine Karte ab.

Amo de Pozos Desbordados

Inminente 4—{1}{U}{U}. (Si lanzas este hechizo por su coste de inminente, entra con cuatro 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.)
Vuela.
Siempre que el Amo de Pozos Desbordados entre o ataque, roba dos cartas y luego descarta una carta.

Suzerain de Fossecrue

Imminence 4 — {1}{U}{U} (Si vous lancez ce sort pour son coût d'imminence, il arrive avec quatre 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 ».)
Vol
À chaque fois que le Suzerain de Fossecrue arrive ou qu'il attaque, piochez deux cartes, puis défaussez-vous d'une carte.

Sovrano delle Fosse Sommerse

Imminente 4—{1}{U}{U} (Se lanci questa magia per il suo costo di imminente, entra con quattro 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.)
Volare
Ogniqualvolta il Sovrano delle Fosse Sommerse entra o attacca, pesca due carte, poi scarta una carta.

フラッドピットの大主

兆候４ — {1}{U}{U}（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４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。
飛行
フラッドピットの大主が戦場に出るか攻撃するたび、カード２枚を引き、その後、カード１枚を捨てる。

Overlord of the Floodpits

Impending 4—{1}{U}{U} (If you cast this spell for its impending cost, it enters with four 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.)
Flying
Whenever this permanent enters or attacks, draw two cards, then discard a card.

Duskmourn: House of Horror

Impending 4—{1}{U}{U} (If you cast this spell for its impending cost, it enters with four 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.)
Flying
Whenever Overlord of the Floodpits enters or attacks, draw two cards, then discard a card.

Impending 4—{1}{U}{U}
Flying
Whenever Overlord of the Floodpits enters or attacks, draw two cards, then discard a card.

Duskmourn: House of Horror Promos

"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.