Samut, treibende Kraft

Erstschlag, Wachsamkeit, Eile
Starte die Motoren (Falls du kein Tempo hast, beginnt es bei 1. Es erhöht sich einmal in jedem deiner Züge, wenn ein Gegner Lebenspunkte verliert. Das Maximaltempo ist 4.)
Andere Kreaturen, die du kontrollierst, erhalten +X/+0, wobei X gleich deinem Tempo ist.
Nichtkreatur-Zaubersprüche, die du wirkst, kosten beim Wirken {X} weniger, wobei X gleich deinem Tempo ist.

Samut, la Fuerza Motriz

Daña primero, vigilancia, prisa.
¡Enciende el motor (Si no tienes velocidad, empieza en 1. Aumenta una vez en cada uno de tus turnos cuando un oponente pierde vidas. La velocidad máxima es 4.)
Las otras criaturas que controlas obtienen +X/+0, donde X es tu velocidad.
Te cuesta {X} menos lanzar hechizos que no sean criatura, donde X es tu velocidad.

Samut, la force motrice

Initiative, vigilance, célérité
Allumez les moteurs (Si vous n'avez pas de vitesse, elle commence à 1. Elle augmente une fois à chacun de vos tours quand un adversaire perd des points de vie. La vitesse maximale est 4.)
Les autres créatures que vous contrôlez gagnent +X/+0, X étant votre vitesse.
Les sorts non-créature que vous lancez coûtent {X} de moins à lancer, X étant votre vitesse.

Samut, la Forza Trainante

Attacco improvviso, cautela, rapidità
Accendete i motori (Se non hai velocità, inizia da 1. Aumenta una volta in ognuno dei tuoi turni quando un avversario perde punti vita. La massima velocità è 4.)
Le altre creature che controlli prendono +X/+0, dove X è la tua velocità.
Le magie non creatura che lanci costano {X} in meno per essere lanciate, dove X è la tua velocità.

推進力、サムト

先制攻撃、警戒、速攻
エンジン始動！（あなたが速度を持たないなら、１から始まる。速度はあなたの各ターンに１回、対戦相手がライフを失ったとき、１上がる。最高速度は４である。）
あなたがコントロールしていてこれでないすべてのクリーチャーは＋X/＋0の修整を受ける。Ｘは、あなたの速度に等しい。
あなたがクリーチャーでない呪文を唱えるためのコストは{X}少なくなる。Ｘは、あなたの速度に等しい。

Samut, the Driving Force

First strike, vigilance, haste
Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
Other creatures you control get +X/+0, where X is your speed.
Noncreature spells you cast cost {X} less to cast, where X is your speed.

Aetherdrift Promos

Aetherdrift

First strike, vigilance, haste
Start your engines (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
Other creatures you control get +X/+0, where X is your speed.
Noncreature spells you cast cost {X} less to cast, where X is your speed.

First strike, vigilance, haste
Start your engines
Other creatures you control get +X/+0, where X is your speed.
Noncreature spells you cast cost {X} less to cast, where X is your speed.

A player “has max speed” if their speed is 4.

Each player tracks their speed (or lack thereof) separately. Increasing your speed has no effect on whether another player has speed.

If an effect needs to know what a player’s speed is and that player doesn’t have a speed, their speed is considered 0.

Start your engines! isn’t a triggered ability. Increasing your speed to 1 is something that happens as a state-based action as soon as you control a permanent with the ability. Notably, this includes gaining control of a permanent with the ability that another player controls.

Your speed doesn’t change until a spell or ability says so, such as the inherent triggered ability that cares about opponents losing life during your turn. Notably, losing control of permanents with start your engines! doesn’t affect your speed.

“Max speed — [ability]” means “As long as you have max speed, this object has [ability].” If the granted ability functions in a zone other than the battlefield, the max speed ability does too.