Seelenführerin

Immer wenn eine andere Kreatur unter deiner Kontrolle ins Spiel kommt, erhältst du 1 Lebenspunkt dazu und du erhältst {E}.
Immer wenn du angreifst, kannst du {E}{E}{E} bezahlen. Wenn du dies tust, lege zwei +1/+1-Marken und eine Fliegend-Marke auf eine angreifende Kreatur deiner Wahl. Sie wird zusätzlich zu ihren anderen Typen zu einem Engel.

Guide des âmes

À chaque fois qu'une autre créature arrive sur le champ de bataille sous votre contrôle, vous gagnez 1 point de vie et {E}.
À chaque fois que vous attaquez, vous pouvez payer {E}{E}{E}. Quand vous faites ainsi, mettez deux marqueurs +1/+1 et un marqueur « vol » sur une créature attaquante ciblée. Elle devient un ange en plus de ses autres types.

魂の導き手

これでないクリーチャー１体があなたのコントロール下で戦場に出るたび、１点のライフと{E}を得る。
あなたが攻撃するたび、{E}{E}{E}を支払ってもよい。そうしたとき、攻撃クリーチャー１体を対象とする。それの上に＋１/＋１カウンター２個と飛行カウンター１個を置く。それは他のタイプに加えて天使になる。

导灵僧

每当另一个生物在你的操控下进战场时，你获得1点生命且得到{E}。
每当你攻击时，你可以支付{E}{E}{E}。当你如此作时，在目标进行攻击的生物上放置两个+1/+1指示物和一个飞行指示物。它成为天使，且仍具有原本类别。

Guide of Souls

Whenever another creature you control enters, you gain 1 life and get {E} (an energy counter).
Whenever you attack, you may pay {E}{E}{E}. When you do, put two +1/+1 counters and a flying counter on target attacking creature. It becomes an Angel in addition to its other types.

Modern Horizons 3 Promos

Modern Horizons 3

Whenever another creature enters the battlefield under your control, you gain 1 life and get {E} (an energy counter).
Whenever you attack, you may pay {E}{E}{E}. When you do, put two +1/+1 counters and a flying counter on target attacking creature. It becomes an Angel in addition to its other types.

Whenever another creature enters the battlefield under your control, you gain 1 life and get {E}.
Whenever you attack, you may pay {E}{E}{E}. When you do, put two +1/+1 counters and a flying counter on target attacking creature. It becomes an Angel in addition to its other types.

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.

The type-changing effect of the reflexive triggered ability lasts indefinitely. It doesn't wear off during the cleanup step or when Guide of Souls leaves the battlefield.

You don't choose a target for Guide of Souls's last ability at the time it triggers. Rather, a second "reflexive" ability triggers when you pay {E}{E}{E} this way. You choose a target for that ability as it goes on the stack. Each player may respond to this triggered ability as normal.

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