Urza, Erster Fürst der Handwerker

Wenn Urza, Erster Fürst der Handwerker, ins Spiel kommt, erzeuge einen 0/0 farblosen Konstrukt-Artefaktkreaturenspielstein mit „Diese Kreatur erhält +1/+1 für jedes Artefakt, das du kontrollierst."
Tappe ein ungetapptes Artefakt, das du kontrollierst: Erzeuge {U}.
{5}: Mische deine Bibliothek und schicke dann die oberste Karte ins Exil. Bis zum Ende des Zuges kannst du sie spielen, ohne ihre Manakosten zu bezahlen.

Urza, seigneur grand-artificier

Quand Urza, seigneur grand-artificier arrive sur le champ de bataille, créez un jeton de créature-artefact 0/0 incolore Construction avec « Cette créature gagne +1/+1 pour chaque artefact que vous contrôlez. »
Engagez un artefact dégagé que vous contrôlez : Ajoutez {U}.
{5} : Mélangez votre bibliothèque, puis exilez la carte du dessus. Jusqu'à la fin du tour, vous pouvez jouer cette carte sans payer son coût de mana.

最高工匠卿、ウルザ

最高工匠卿、ウルザが戦場に出たとき、「このクリーチャーは、あなたがコントロールしているアーティファクト１つにつき＋１/＋１の修整を受ける。」を持つ無色の０/０の構築物・アーティファクト・クリーチャー・トークン１体を生成する。
あなたがコントロールしていてアンタップ状態であるアーティファクト１つをタップする：{U}を加える。
{5}：ライブラリーを切り直す。その後、その一番上にあるカード１枚を追放する。ターン終了時まで、そのカードをマナ・コストを支払うことなくプレイしてもよい。

铸物勋爵克撒

当铸物勋爵克撒进战场时，派出一个0/0无色组构体衍生神器生物，且具有「你每操控一个神器，此生物便得+1/+1。」
横置一个由你操控且未横置的神器：加{U}。
{5}：将你的牌库洗牌，然后放逐顶牌。直到回合结束，你可以使用该牌且不需支付其法术力费用。

Urza, Lord High Artificer

When Urza enters, create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control."
Tap an untapped artifact you control: Add {U}.
{5}: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

Mystery Booster 2

When Urza, Lord High Artificer enters the battlefield, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."
Tap an untapped artifact you control: Add {U}.
{5}: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

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Commander Masters

If a spell has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.

If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, you must pay those to cast the card.

If you don't play the card exiled with Urza's last ability, it remains in exile.

The token created by Urza's first ability will count itself, so it'll be at least 1/1.

Urza's last ability doesn't change when you can play the exiled card. For example, if you exile a sorcery card, you can cast it only during your main phase when the stack is empty. If you exile a land card, you can play it only during your main phase and only if you have an available land play remaining.

You can tap any untapped artifact you control to pay the cost of the mana ability, including an artifact creature you haven't controlled continuously since the beginning of your most recent turn. Tapping an Equipment this way won't affect its abilities or the equipped creature.

Construct

This creature gets +1/+1 for each artifact you control.