Massakerwurm

Wenn der Massakerwurm ins Spiel kommt, erhalten Kreaturen, die deine Gegner kontrollieren, -2/-2 bis zum Ende des Zuges.
Immer wenn eine Kreatur, die ein Gegner kontrolliert, stirbt, verliert jener Spieler 2 Lebenspunkte.

Guivre du massacre

Quand la Guivre du massacre arrive sur le champ de bataille, les créatures que vos adversaires contrôlent gagnent -2/-2 jusqu'à la fin du tour.
À chaque fois qu'une créature qu'un adversaire contrôle meurt, ce joueur perd 2 points de vie.

Wurm della Strage

Quando il Wurm della Strage entra nel campo di battaglia, le creature controllate dai tuoi avversari prendono -2/-2 fino alla fine del turno.
Ogniqualvolta una creatura controllata da un avversario muore, quel giocatore perde 2 punti vita.

虐殺のワーム

虐殺のワームが戦場に出たとき、ターン終了時まで、対戦相手がコントロールしているすべてのクリーチャーは－２/－２の修整を受ける。
対戦相手１人がコントロールしているクリーチャー１体が死亡するたび、そのプレイヤーは２点のライフを失う。

Massacre Wurm

When this creature enters, creatures your opponents control get -2/-2 until end of turn.
Whenever a creature an opponent controls dies, that player loses 2 life.

Foundations

Duskmourn: House of Horror Commander

When Massacre Wurm enters, creatures your opponents control get -2/-2 until end of turn.
Whenever a creature an opponent controls dies, that player loses 2 life.

Murders at Karlov Manor Commander

When Massacre Wurm enters the battlefield, creatures your opponents control get -2/-2 until end of turn.
Whenever a creature an opponent controls dies, that player loses 2 life.

March of the Machine Commander

If a creature an opponent controls dies at the same time as Massacre Wurm, Massacre Wurm's last ability triggers for that creature.

If your life total is brought to 0 or less at the same time that a creature an opponent controls is dealt lethal damage, you lose the game before Massacre Wurm's last ability goes on the stack.

Massacre Wurm's first ability affects only creatures your opponents control at the time it resolves. Creatures they begin to control later in the turn won't get -2/-2.

Massacre Wurm's triggered ability triggers if a creature an opponent controls dies for any reason, including from its first ability reducing its toughness to 0, as long as Massacre Wurm remains on the battlefield.