Wunder des Ätherwerks

Immer wenn ein Permanent, das du kontrollierst, auf einen Friedhof gelegt wird, erhältst du {E} (eine Energiemarke).
{T}, bezahle sechs {E}: Schaue dir die obersten sechs Karten deiner Bibliothek an. Du kannst davon einen Zauberspruch wirken, ohne seine Manakosten zu bezahlen. Lege den Rest in zufälliger Reihenfolge unter deine Bibliothek.

Pompe éthérique modèle

À chaque fois qu'un permanent que vous contrôlez est mis dans un cimetière, vous gagnez {E} (un marqueur « énergie »).
{T}, payez six {E} : Regardez les six cartes du dessus de votre bibliothèque. Vous pouvez lancer un sort parmi elles sans payer son coût de mana. Mettez le reste au-dessous de votre bibliothèque dans un ordre aléatoire.

霊気池の驚異

あなたがコントロールしているパーマネント１つが墓地に置かれるたび、{E}（エネルギー・カウンター１個）を得る。
{T}, {E}６個を支払う：あなたのライブラリーの一番上にあるカード６枚を見る。その中から呪文１つを、マナ・コストを支払うことなく唱えてもよい。残りをあなたのライブラリーの一番下に無作為の順番で置く。

Aetherworks Marvel

Whenever a permanent you control is put into a graveyard, you get {E} (an energy counter).
{T}, Pay six {E}: Look at the top six cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Modern Horizons 3 Commander

Kaladesh Remastered

Whenever a permanent you control is put into a graveyard, you get {E} (an energy counter).
{T}, Pay {E}{E}{E}{E}{E}{E}: Look at the top six cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Kaladesh

Whenever a permanent you control is put into a graveyard, you get {E} (an energy counter).
{T}, Pay {E}{E}{E}{E}{E}{E}: Look at the top six cards of your library. You may cast a card from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Kaladesh Promos

Aetherworks Marvel's first ability triggers whenever any permanent you control is put into a graveyard from the battlefield, including Aetherworks Marvel itself and other permanents put into a graveyard at the same time as it.

If the card 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, such as emerge costs. You can, however, pay additional costs. If the card has any mandatory additional costs, such as that of Incendiary Sabotage, you must pay those to cast the card.

The card cast with Aetherworks Marvel's second ability is cast from your library.

Tokens that are sacrificed or destroyed are put into their owner's graveyard before ceasing to exist. If you controlled the token, Aetherworks Marvel's first ability will trigger.

Energy counters are a kind of counter that a player may have. They're not associated with any specific permanents.

Energy counters aren't mana. They don't go away as steps, phases, and turns end, and effects that add mana "of any type" can't give you energy counters.

If a spell or ability with one or more targets states that you "may pay" some amount of {E}, and each permanent that it targets has become an illegal target, the spell or ability won't resolve. You can't pay any {E} even if you want to.

If an effect says you get one or more {E}, you get that many energy counters. To pay one or more {E}, you lose that many energy counters. You can't pay more energy counters than you have. Any effects that interact with counters a player gets, has, or loses can interact with energy counters.

Keep track of how many energy counters each player has. Potential ways to track this include writing theme down on paper or using dice, but any method that is clear and mutually agreeable is fine. (At higher levels of tournament play, dice may not be allowed for tracking counters that players have.)

Some spells and abilities that give you {E} may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't get any {E}.

Some triggered abilities state that you "may pay" a certain amount of {E}. You can't pay that amount multiple times to multiply the effect. You simply choose whether or not to pay that amount of {E} as the ability resolves.

Some triggered abilities that state that you "may pay" a certain amount of {E} describe an effect that happens "If you do." In that case, no player may take actions to try to stop the ability's effect after you make your choice. If the payment is followed by the phrase "When you do," then you'll choose any targets for that reflexive triggered ability and put it on the stack before players can take actions.