Ätherstrom-Leopard

Verursacht Trampelschaden
Wenn der Ätherstrom-Leopard ins Spiel kommt, erhältst du {E} (eine Energiemarke).
Immer wenn der Ätherstrom-Leopard angreift, kannst du {E} bezahlen. Falls du dies tust, erhält er +2/+0 bis zum Ende des Zuges.

Leopardo de corriente etérica

Arrolla.
Cuando el Leopardo de corriente etérica entre al campo de batalla, obtienes {E} (un contador de energía).
Siempre que el Leopardo de corriente etérica ataque, puedes pagar {E}. Si lo haces, obtiene +2/+0 hasta el final del turno.

Léopard des ruisseaux d'Éther

Piétinement
Quand le Léopard des ruisseaux d'Éther arrive sur le champ de bataille, vous gagnez {E} (un marqueur « énergie »).
À chaque fois que le Léopard des ruisseaux d'Éther attaque, vous pouvez payer {E}. Si vous faites ainsi, il gagne +2/+0 jusqu'à la fin du tour.

Leopardo della Corrente Eterea

Travolgere
Quando il Leopardo della Corrente Eterea entra nel campo di battaglia, ottieni {E} (un segnalino energia).
Ogniqualvolta il Leopardo della Corrente Eterea attacca, puoi pagare {E}. Se lo fai, prende +2/+0 fino alla fine del turno.

霊気流の豹

トランプル
霊気流の豹が戦場に出たとき、あなたは{E}（エネルギー・カウンター１個）を得る。
霊気流の豹が攻撃するたび、あなたは{E}を支払ってもよい。そうしたなら、ターン終了時まで、これは＋２/＋０の修整を受ける。

에테르 개울 표범

돌진
에테르 개울 표범이 전장에 들어올 때, 당신은 {E}(에너지 카운터 한 개)를 얻는다.
에테르 개울 표범이 공격할 때마다, 당신은 {E}를 지불할 수 있다. 그렇게 한다면, 에테르 개울 표범은 턴종료까지 +2/+0을 받는다.

Leopardo-das-correntes-de-éter

Atropelar
Quando Leopardo-das-correntes-de-éter entra no campo de batalha, você recebe {E} (um marcador de energia).
Toda vez que Leopardo-das-correntes-de-éter ataca, você pode pagar {E}. Se fizer isso, ele receberá +2/+0 até o final do turno.

Леопард Эфирных Потоков

Пробивной удар
Когда Леопард Эфирных Потоков выходит на поле битвы, вы получаете {E} (один жетон энергии).
Каждый раз, когда Леопард Эфирных Потоков атакует, вы можете заплатить {E}. Если вы это делаете, он получает +2/+0 до конца хода.

乙太流猎豹

践踏
当乙太流猎豹进战场时，你得到{E}（一个能量指示物）。
每当乙太流猎豹攻击时，你可以支付{E}。若你如此作，则它得+2/+0直到回合结束。

乙太流獵豹

踐踏
當乙太流獵豹進戰場時，你得到{E}（一個能量指示物）。
每當乙太流獵豹攻擊時，你可以支付{E}。若你如此作，則它得+2/+0直到回合結束。

Aetherstream Leopard

Trample
When this creature enters, you get {E} (an energy counter).
Whenever this creature attacks, you may pay {E}. If you do, it gets +2/+0 until end of turn.

Jumpstart: Historic Horizons

Aether Revolt

Trample
When Aetherstream Leopard enters the battlefield, you get {E} (an energy counter).
Whenever Aetherstream Leopard attacks, you may pay {E}. If you do, it gets +2/+0 until end of turn.

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.