Karn, neu geschmiedetes Vermächtnis

Stärke und Widerstandskraft von Karn, neu geschmiedetes Vermächtnis, sind gleich dem höchsten Manabetrag unter den Artefakten, die du kontrollierst.
Zu Beginn deines Versorgungssegments erzeugst du {C} für jedes Artefakt, das du kontrollierst. Dieses Mana kann nicht ausgegeben werden, um Nichtartefakt-Zaubersprüche zu wirken. Bis zum Ende des Zuges verlierst du dieses Mana nicht, sowie Segmente und Phasen enden.

Karn, legado reforjado

Tanto la fuerza como la resistencia de Karn, legado reforjado son iguales al mayor valor de maná entre los artefactos que controlas.
Al comienzo de tu mantenimiento, agrega {C} por cada artefacto que controlas. Este maná no se puede usar para lanzar hechizos que no sean de artefacto. Hasta el final del turno, no pierdes ese maná en cuanto terminan los pasos y las fases.

Karn, l'héritage reforgé

La force et l'endurance de Karn, l'héritage reforgé sont chacune égales à la valeur de mana la plus élevée parmi les artefacts que vous contrôlez.
Au début de votre entretien, ajoutez {C} pour chaque artefact que vous contrôlez. Ce mana ne peut pas être dépensé pour lancer des sorts non-artefact. Jusqu'à la fin du tour, vous ne perdez pas ce mana au moment où les étapes et les phases se terminent.

Karn, Eredità Riforgiata

La forza e la costituzione di Karn, Eredità Riforgiata sono pari al valore di mana maggiore tra gli artefatti che controlli.
All'inizio del tuo mantenimento, aggiungi {C} per ogni artefatto che controlli. Questo mana non può essere speso per lanciare magie non artefatto. Fino alla fine del turno, non perdi questo mana al termine di ogni fase o sottofase.

Karn, Legado Reforjado

O poder e a resistência de Karn, Legado Reforjado, são ambos iguais ao maior valor de mana dentre os artefatos que você controla.
No início de sua manutenção, adicione {C} para cada artefato que você controla. Este mana não pode ser gasto para conjurar mágicas não de artefato. Até o final do turno, você não perde esse mana conforme as etapas e fases terminam.

神兵重铸卡恩

神兵重铸卡恩的力量和防御力各等同于由你操控之神器中的最大法术力值。
在你的维持开始时，你每操控一个神器，便加{C}。此法术力不能用来施放非神器咒语。直到回合结束，你不会因步骤与阶段结束失去这份法术力。

Karn, Legacy Reforged

Karn's power and toughness are each equal to the greatest mana value among artifacts you control.
At the beginning of your upkeep, add {C} for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.

Mystery Booster 2

Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control.
At the beginning of your upkeep, add {C} for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.

March of the Machine: The Aftermath

Karn's last ability isn't a mana ability, even though it adds mana. It uses the stack and it can be responded to. Use the number of artifacts you control as the ability resolves to determine how much mana to add.

The ability that defines Karn's power and toughness works in all zones, not just the battlefield. As long as Karn is under your control and still an artifact, its own mana value will count. In most cases, it'll be at least 5/5.

The mana produced by Karn's last ability can be spent on anything that isn't a nonartifact spell. This includes casting artifact spells, paying costs to activate abilities of both artifact and nonartifact permanents, paying ward costs, and so on.