Äther-Hirte

Wenn der Äther-Hirte ins Spiel kommt, erhältst du {E}{E} (zwei Energiemarken).
Immer wenn der Äther-Hirte angreift, kannst du {E}{E} bezahlen. Falls du dies tust, erzeuge einen 1/1 farblosen Servo-Artefaktkreaturenspielstein.

Pastor del éter

Cuando el Pastor del éter entre al campo de batalla, obtienes {E}{E} (dos contadores de energía).
Siempre que el Pastor del éter ataque, puedes pagar {E}{E}. Si lo haces, crea una ficha de criatura artefacto Servo incolora 1/1.

Berger de l'Éther

Quand le Berger de l'Éther arrive sur le champ de bataille, vous gagnez {E}{E} (deux marqueurs « énergie »).
À chaque fois que le Berger de l'Éther attaque, vous pouvez payer {E}{E}. Si vous faites ainsi, créez un jeton de créature-artefact 1/1 incolore Servo.

Pastore dell'Etere

Quando il Pastore dell'Etere entra nel campo di battaglia, ottieni {E}{E} (due segnalini energia).
Ogniqualvolta il Pastore dell'Etere attacca, puoi pagare {E}{E}. Se lo fai, crea una pedina creatura artefatto Servomeccanismo 1/1 incolore.

霊気運用者

霊気運用者が戦場に出たとき、あなたは{E}{E}（エネルギー・カウンター２個）を得る。
霊気運用者が攻撃するたび、あなたは{E}{E}を支払ってもよい。そうしたなら、無色の１/１の霊気装置・アーティファクト・クリーチャー・トークンを１体生成する。

에테르 목동

에테르 목동이 전장에 들어올 때, 당신은 {E}{E}(에너지 카운터 두 개)를 얻는다.
에테르 목동이 공격할 때마다, 당신은 {E}{E}를 지불할 수 있다. 그렇게 한다면, 1/1 무색 서보 마법물체 생물 토큰 한 개를 만든다.

Pastor do Éter

Quando Pastor do Éter entra no campo de batalha, você recebe {E}{E} (dois marcadores de energia).
Toda vez que Pastor do Éter ataca, você pode pagar {E}{E}. Se fizer isso, crie uma ficha de criatura artefato incolor 1/1 do tipo Servus.

Эфирный Пастух

Когда Эфирный Пастух выходит на поле битвы, вы получаете {E}{E} (два жетона энергии).
Каждый раз, когда Эфирный Пастух атакует, вы можете заплатить {E}{E}. Если вы это делаете, создайте одну фишку артефакта существа 1/1 бесцветный Сервотрон.

乙太牧人

当乙太牧人进战场时，你得到{E}{E}（两个能量指示物）。
每当乙太牧人攻击时，你可以支付{E}{E}。若你如此作，则派出一个1/1无色自动机衍生神器生物。

當乙太牧人進戰場時，你得到{E}{E}（兩個能量指示物）。
每當乙太牧人攻擊時，你可以支付{E}{E}。若你如此作，則派出一個1/1無色自動機衍生神器生物。

Aether Herder

When this creature enters, you get {E}{E} (two energy counters).
Whenever this creature attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token.

Aether Revolt

When Aether Herder enters the battlefield, you get {E}{E} (two energy counters).
Whenever Aether Herder attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token.

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.

{E} is the energy symbol. It represents one energy counter.