Tezzeret, Verräter des Fleisches

Die erste aktivierte Fähigkeit eines Artefakts, die du pro Zug aktivierst, kostet beim Aktivieren {2} weniger.
+1: Ziehe zwei Karten. Wirf dann zwei Karten ab, es sei denn, du wirfst eine Artefaktkarte ab.
−2: Ein Artefakt deiner Wahl wird zu einer Artefaktkreatur. Falls es kein Fahrzeug ist, hat es Basis-Stärke und -Widerstandskraft 4/4.
−6: Du erhältst ein Emblem mit „Immer wenn ein Artefakt, das du kontrollierst, getappt wird, ziehe eine Karte."

Tezzeret, traître de la chair

La première capacité activée d'un artefact que vous activez à chaque tour coûte {2} de moins à activer.
+1: Piochez deux cartes. Défaussez-vous ensuite de deux cartes à moins que vous ne vous défaussiez d'une carte d'artefact.
-2: Un artefact ciblé devient une créature-artefact. Si ce n'est pas un véhicule, il a une force et une endurance de base de 4/4.
-6: Vous gagnez un emblème avec « À chaque fois qu'un artefact que vous contrôlez devient engagé, piochez une carte. »

Tezzeret, Traditore della Carne

La prima abilità attivata di un artefatto che attivi in ogni turno costa {2} in meno per essere attivata.
+1: Pesca due carte. Poi scarta due carte a meno che non scarti una carta artefatto.
−2: Un artefatto bersaglio diventa una creatura artefatto. Se non è un Veicolo, ha forza e costituzione base 4/4.
−6: Ottieni un emblema con "Ogniqualvolta un artefatto che controlli viene TAPpato, pesca una carta".

肉体の裏切者、テゼレット

各ターンであなたが１つ目に起動するアーティファクトの起動型能力を起動するためのコストは{2}少なくなる。
+1：カード２枚を引く。その後、あなたがアーティファクト・カード１枚を捨てないかぎり、カード２枚を捨てる。
-2：アーティファクト１つを対象とする。それはアーティファクト・クリーチャーになる。それが機体でないなら、それの基本のパワーとタフネスは４/４になる。
-6：あなたは「あなたがコントロールしているアーティファクト１つがタップ状態になるたび、カード１枚を引く。」を持つ紋章を得る。

Tezzeret, Betrayer of Flesh

The first activated ability of an artifact you activate each turn costs {2} less to activate.
[+1]: Draw two cards. Then discard two cards unless you discard an artifact card.
[−2]: Target artifact becomes an artifact creature. If it isn't a Vehicle, it has base power and toughness 4/4.
[−6]: You get an emblem with "Whenever an artifact you control becomes tapped, draw a card."

Murders at Karlov Manor Commander

The first activated ability of an artifact you activate each turn costs {2} less to activate.
+1: Draw two cards. Then discard two cards unless you discard an artifact card.
−2: Target artifact becomes an artifact creature. If it isn't a Vehicle, it has base power and toughness 4/4.
−6: You get an emblem with "Whenever an artifact you control becomes tapped, draw a card."

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If Tezzeret's second loyalty ability causes a Vehicle to become an artifact creature, it doesn't count as "crewing" that Vehicle for any ability that would trigger off of a Vehicle becoming crewed.

If you activate Tezzeret's second loyalty ability targeting a Vehicle, it will have its printed power and toughness.

If you begin to activate an ability that costs mana before activating any mana abilities you need to pay for it, that ability will be the one to get Tezzeret's discount. The total cost for that ability becomes locked in, and then you can activate mana abilities to pay for it.

Tezzeret, Betrayer of Flesh's first ability reduces the cost of the first activated ability of an artifact that you begin to activate each turn. The second ability (and any subsequent abilities) of an artifact you activate that turn won't cost {2} less to activate, even if the first ability you activated didn't cost any mana to begin with. Notably, this does not exclude mana abilities.