Despite the magic that sustains Gonti's life, the crime lord is often described as heartless.

Ungeachtet der Magie, die Gonti am Leben hält, wird der Fürst der Unterwelt oft als herzlos beschrieben.

Gontis Ätherherz

Immer wenn Gontis Ätherherz oder ein anderes Artefakt unter deiner Kontrolle ins Spiel kommt, erhältst du {E}{E} (zwei Energiemarken).
Bezahle acht {E}, schicke Gontis Ätherherz ins Exil: Du erhältst nach diesem Zug einen zusätzlichen Zug.

Malgré la magie qui maintient Gonti en vie, le baron du crime est souvent décrit comme étant sans cœur.

Cœur éthérique de Gonti

À chaque fois que le Cœur éthérique de Gonti ou un autre artefact arrive sur le champ de bataille sous votre contrôle, vous gagnez {E}{E} (deux marqueurs « énergie »).
Payez huit {E}, exilez le Cœur éthérique de Gonti : Jouez un tour supplémentaire après celui-ci.

ゴンティを生かし続ける魔法の働きにもかかわらず、この犯罪王は血が通っていないと言われている。

ゴンティの霊気心臓

ゴンティの霊気心臓やこれでないアーティファクト１つがあなたのコントロール下で戦場に出るたび、{E}{E}（エネルギー・カウンター２個）を得る。
{E}８個を支払う, ゴンティの霊気心臓を追放する：このターンに続いて追加の１ターンを行う。

Gonti's Aether Heart

Whenever Gonti's Aether Heart or another artifact you control enters, you get {E}{E} (two energy counters).
Pay eight {E}, Exile Gonti's Aether Heart: Take an extra turn after this one.

Modern Horizons 3 Commander

Whenever Gonti's Aether Heart or another artifact enters the battlefield under your control, you get {E}{E} (two energy counters).
Pay eight {E}, Exile Gonti's Aether Heart: Take an extra turn after this one.

Aether Revolt

Whenever Gonti's Aether Heart or another artifact enters the battlefield under your control, you get {E}{E} (two energy counters).
Pay {E}{E}{E}{E}{E}{E}{E}{E}, Exile Gonti's Aether Heart: Take an extra turn after this one.

Aether Revolt Promos

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.