開拓地の助言者、エルサ・ジョー 
Ertha Jo, Frontier Mentor
伝説のクリーチャー — コー・アドバイザー2/4
Printed (JA)
伝説のクリーチャー — コー・アドバイザー
開拓地の助言者、エルサ・ジョーが戦場に出たとき、「
：あなたがコントロールしているクリーチャー１体を対象とする。ターン終了時まで、それは＋１/＋０の修整を受ける。起動はソーサリーとしてのみ行う。」を持つ赤の１/１の傭兵・クリーチャー・トークン１体を生成する。
あなたがクリーチャーやプレイヤーを対象とする能力１つを起動するたび、その能力をコピーする。そのコピーの新しい対象を選んでもよい。
Oracle text (EN)
Legendary Creature — Kor Advisor
When Ertha Jo enters, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."
Whenever you activate an ability that targets a creature or player, copy that ability. You may choose new targets for the copy.
Printing details
- Set
- OTJ · 203
- Rarity
- Uncommon
- Language
- JA
- Artist
- Michal Ivan
- Released
- 2024-04-19
- Prices
- – · –
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend |
|---|---|
| November 2, 2026 | €0.16 |
| November 1, 2026 | €0.19 |
| October 30, 2026 | €0.20 |
| October 29, 2026 | €0.21 |
| October 28, 2026 | €0.22 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €0.16 30-day avg €0.18 | low – trend €0.21 30-day avg €0.23 |
| CardTrader (JA) | NM from – | NM from €0.38 with Zero from €0.38 |
| CardTrader (any language) | NM from €0.11 | NM from €0.11 |
Cardmarket updated Nov 2, 2026 · CardTrader updated Nov 2, 2026
Buy and look up
Legality
- standard Legal
- pioneer Legal
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Legal
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Not legal
- predh Not legal
- premodern Not legal
- standardbrawl Legal
- timeless Legal
- tlr Not legal
Rulings
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Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keyword abilities (such as equip) are activated abilities and will have colons in their reminder text.
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If the activated ability's cost contains a choice, such as a creature to sacrifice or a number of counters to remove, the copy uses that same information. You can't pay the cost again, even if you want to.
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If the ability is modal (that is, if it says, "Choose one —" or similar), the mode is copied and can't be changed.
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The source of the copy is the same as the source of the original ability.
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The copy made by Ertha Jo's triggered ability is created on the stack, so it's not "activated."
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The copy will have the same targets as the ability it's copying unless you choose new ones. You may change any number of the targets, including all of them or none of them. The new targets must be legal.
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If an ability is linked to a second ability, copies of that ability are also linked to that second ability. If the second ability refers to "the exiled card," it refers to all cards exiled by the ability and the copy. For example, if one of Helvault's activated abilities is copied and two cards are exiled, they both return when Helvault is put into a graveyard from the battlefield.
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If the ability divides damage or distributes counters among a number of targets, the division and number of targets can't be changed. If you choose new targets, you must choose the same number of targets.
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Any choices made when the ability resolves won't have been made yet when it's copied. Any such choices will be made separately when the copy resolves.