Kernstrolcher

Infizieren (Diese Kreatur fügt Schaden in Form von -1/-1-Marken für Kreaturen und von Giftmarken für Spieler zu.)
Wenn der Kernstrolcher aus dem Spiel auf einen Friedhof gelegt wird, führe Wucherung durch. (Du bestimmst eine beliebige Anzahl an bleibenden Karten und/oder Spielern, auf denen Marken liegen, und gibst ihnen dann eine weitere Marke einer Sorte, die dort bereits liegt.)

Rondador del núcleo

Infectar. (Esta criatura hace daño a las criaturas en forma de contadores -1/-1 y a los jugadores en forma de contadores de veneno.)
Cuando el Rondador del núcleo vaya a un cementerio desde el campo de batalla, prolifera. (Eliges cualquier número de permanentes y/o jugadores con contadores sobre ellos y pones sobre cada uno un contador de un tipo que ya tenga.)

Rôdeur du Noyau

Infection (Cette créature inflige des blessures aux créatures sous la forme de marqueurs -1/-1 et aux joueurs sous la forme de marqueurs « poison ».)
Quand le Rôdeur du Noyau est mis dans un cimetière depuis le champ de bataille, proliférez. (Vous choisissez n'importe quel nombre de permanents et/ou de joueurs avec des marqueurs sur eux, puis vous leur donnez à chacun un autre marqueur d'une sorte déjà présente.)

Predone del Nucleo

Infettare (Questa creatura infligge danno alle creature sotto forma di segnalini -1/-1 e ai giocatori sotto forma di segnalini veleno.)
Quando il Predone del Nucleo viene messo in un cimitero dal campo di battaglia, proliferare. (Scegli un qualsiasi numero di permanenti e/o giocatori con segnalini su di essi, poi metti su ognuno un altro segnalino di un tipo già presente.)

核をうろつくもの

感染 （このクリーチャーは、クリーチャーに－１/－１カウンターの形でダメージを与え、プレイヤーに毒カウンターの形でダメージを与える。）
核をうろつくものが戦場からいずれかの墓地に置かれたとき、増殖を行う。 （あなたはカウンターの置かれているパーマネントやプレイヤーを望む数だけ選び、その後それぞれに、その上にすでに置かれているカウンターのうち１種類を１個置く。）

Espreitador do Núcleo

Infectar (Esta criatura causa dano a criaturas na forma de marcadores -1/-1 e a jogadores na forma de marcadores de veneno.)
Quando Espreitador do Núcleo for colocado num cemitério vindo do campo de batalha, prolifere. (Você escolhe um número qualquer de permanentes e/ou jogadores com marcadores sobre eles e depois dá a cada um outro marcador de um tipo que eles já tenham.)

Мародер Ядра

Инфекция (Это существо наносит повреждения существам в виде жетонов -1/-1, а игрокам в виде жетонов яда.)
Когда Мародер Ядра попадает с поля битвы на кладбище, используйте Распространение. (Вы выбираете любое количество перманентов и (или) игроков, на которых есть жетоны, затем даете каждому из них еще один жетон того типа, который у него уже имеется.)

核心游掠者

侵染 （此生物会以-1/-1指示物的方式对生物造成伤害，并以中毒指示物的方式对牌手造成伤害。）
当核心游掠者从战场进入坟墓场时，增殖。 （你选择任意数量其上有指示物的永久物和／或牌手，然后在其上放置一个它已有之类别的指示物。）

核心遊掠者

侵染 （此生物會以-1/-1指示物的方式對生物造成傷害，並以中毒指示物的方式對玩家造成傷害。）
當核心遊掠者從戰場進入墳墓場時，增殖。 （你選擇任意數量其上有指示物的永久物和／或玩家，然後在其上放置一個它已有之類別的指示物。）

Core Prowler

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
When Core Prowler dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Mirrodin Besieged

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
When Core Prowler is put into a graveyard from the battlefield, proliferate. (You choose any number of permanents and/or players with counters on them, then give each another counter of a kind already there.)

An ability that triggers "Whenever you proliferate" triggers even if you chose no permanents or players while doing so.

If a permanent ever has both +1/+1 counters and -1/-1 counters on it at the same time, they're removed in pairs as a state-based action so that the permanent has only one of those kinds of counters on it.

If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has. You can't have it get just one kind of counter it already has and not the others.

Players can respond to a spell or ability whose effect includes proliferating. Once that spell or ability starts to resolve, however, and its controller chooses which permanents and players will get new counters, it's too late for anyone to respond.

To proliferate, you can choose any permanent that has a counter, including ones controlled by opponents. You can choose any player who has a counter, including opponents. You can't choose cards in any zone other than the battlefield, even if they have counters on them.

You don't have to choose every permanent or player that has a counter, only the ones you want to add another counter to. Since "any number" includes zero, you don't have to choose any permanents at all, and you don't have to choose any players at all.