Card
Ertha Jo, Frontier Mentor
Mana cost {2}{R}{W}
Legendary Creature — Kor Advisor 2/4
When Ertha Jo enters, create a 1/1 red Mercenary creature token with "{T}: 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.
Part of 74 known combos, 3 of them two-card. 9 official rulings.
- Commander
- Legal
- Printing
- Uncommon · OTJ · #203
- Cheapest printing
- €0.20
- EDHREC salt
- 0.25
- Color identity
- Red, White
Bracket
- B1 Exhibition — Not in the same deck as its two-card combo partners: Aphetto Alchemist, Seeker of Skybreak, Tidewater Minion
- B2 Core — Not in the same deck as its two-card combo partners: Aphetto Alchemist, Seeker of Skybreak, Tidewater Minion
- B3 Upgraded — Not in the same deck as its early two-card combo partners: Aphetto Alchemist, Seeker of Skybreak, Tidewater Minion
- B4 Optimized — allowed: No restriction beyond the banned list
- B5 cEDH — allowed: No restriction beyond the banned list
Why
- Two-card combo with Aphetto Alchemist, Seeker of Skybreak, Tidewater Minion (early with Aphetto Alchemist, Seeker of Skybreak, Tidewater Minion)
How Lotus Vault estimates a bracket
Bracket: Lotus Vault analysis, with Commander Spellbook flags
Combos
74 known combos, 3 of them two-card.
- The Jolly Balloon Man + Ertha Jo, Frontier Mentor + Zealous Conscripts
Produces: Infinite creature LTB, Infinite creature ETB, Infinite creature sacrifice triggers
View on Commander Spellbook - The Jolly Balloon Man + Ertha Jo, Frontier Mentor + Restoration Angel
Produces: Infinite creature LTB, Infinite creature ETB, Infinite creature sacrifice triggers
View on Commander Spellbook - The Jolly Balloon Man + Ertha Jo, Frontier Mentor + Felidar Guardian
Produces: Infinite creature LTB, Infinite creature ETB, Infinite creature sacrifice triggers
View on Commander Spellbook
Combos: Commander Spellbook
Rulings
- 2024-04-12 · Wizards of the Coast
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. - 2024-04-12 · Wizards of the Coast
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. - 2024-04-12 · Wizards of the Coast
If the ability is modal (that is, if it says, "Choose one —" or similar), the mode is copied and can't be changed. - 2024-04-12 · Wizards of the Coast
The source of the copy is the same as the source of the original ability. - 2024-04-12 · Wizards of the Coast
The copy made by Ertha Jo's triggered ability is created on the stack, so it's not "activated." - 2024-04-12 · Wizards of the Coast
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. - 2024-04-12 · Wizards of the Coast
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. - 2024-04-12 · Wizards of the Coast
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. - 2024-04-12 · Wizards of the Coast
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.
Rulings: Scryfall · Wizards of the Coast