Lärmracker

Immer wenn der Lärmracker einem Spieler Kampfschaden zufügt, kannst du ihn opfern. Falls du dies tust, führe Wucherung durch. (Bestimme eine beliebige Anzahl an bleibenden Karten und/oder Spielern und gib ihnen dann von jeder Sorte Marke, die dort bereits liegt, eine weitere Marke.)
Wenn der Lärmracker stirbt, fügt er einem Ziel deiner Wahl Schadenspunkte in Höhe seiner Stärke zu.

Agitador cacofónico

Siempre que el Agitador cacofónico haga daño de combate a un jugador, puedes sacrificarlo. Si lo haces, prolifera. (Elige cualquier cantidad de permanentes y/o jugadores, luego pon sobre cada uno un contador de cada tipo que ya tenga.)
Cuando el Agitador cacofónico muera, hace una cantidad de daño igual a su fuerza a cualquier objetivo.

Galopin cacophonique

À chaque fois que le Galopin cacophonique inflige des blessures de combat à un joueur, vous pouvez le sacrifier. Si vous faites ainsi, proliférez. (Choisissez n'importe quel nombre de permanents et/ou de joueurs, puis donnez-leur à chacun un autre marqueur de chaque sorte déjà présente.)
Quand le Galopin cacophonique meurt, il inflige un nombre de blessures égal à sa force à n'importe quelle cible.

Furfante della Cacofonia

Ogniqualvolta il Furfante della Cacofonia infligge danno da combattimento a un giocatore, puoi sacrificarlo. Se lo fai, prolifera. (Scegli un qualsiasi numero di permanenti e/o giocatori, poi metti su ognuno un altro segnalino di ogni tipo già presente.)
Quando il Furfante della Cacofonia muore, infligge danno pari alla sua forza a un qualsiasi bersaglio.

騒音の悪獣

騒音の悪獣がプレイヤー１人に戦闘ダメージを与えるたび、あなたはこれを生け贄に捧げてもよい。そうしたなら、増殖を行う。（望む数のパーマネントやプレイヤーを選び、すでにそこにあるカウンター１種類につき、そのカウンターをもう１個与える。）
騒音の悪獣が死亡したとき、.クリーチャーやプレインズウォーカーやプレイヤーのうち１つを対象とする。これはそれに、自身のパワーに等しい点数のダメージを与える。

Maroto da Cacofonia

Toda vez que Maroto da Cacofonia causa dano de combate a um jogador, você pode sacrificá-lo. Se fizer isso, prolifere. (Escolha qualquer número de permanentes e/ou jogadores. Em seguida, dê a cada um deles outro marcador de cada tipo que eles já tenham.)
Quando Maroto da Cacofonia morre, ele causa a qualquer alvo uma quantidade de dano igual ao próprio poder.

杂音恶兽

每当杂音恶兽对任一牌手造成战斗伤害时，你可以将它牺牲。若你如此作，则增殖。（选择任意数量的永久物和／或牌手，然后为其已有之每种指示物各多放置一个同类的指示物。）
当杂音恶兽死去时，它对任意一个目标造成等同于其力量的伤害。

Cacophony Scamp

Whenever this creature deals combat damage to a player, you may sacrifice it. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
When this creature dies, it deals damage equal to its power to any target.

Phyrexia: All Will Be One

Whenever Cacophony Scamp deals combat damage to a player, you may sacrifice it. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
When Cacophony Scamp dies, it deals damage equal to its power to any target.

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 choose whether to sacrifice Cacophony Scamp as its first ability resolves. No player may respond between the time you sacrifice it and the time you proliferate.

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.