Arcane Foundry › Commanders › Ertha Jo, Frontier Mentor

Ertha Jo, Frontier Mentor

Ertha Jo, Frontier Mentor

Legendary Creature — Kor Advisor · {2}{R}{W} · Red/White commander

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.
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What Ertha Jo, Frontier Mentor actually does

Read off the card by the same engine the Forge and Analyzer use — this is the mechanical classification, not a summary.

What an Ertha Jo, Frontier Mentor deck needs

Plays as ability copy. What the commander asks of the other 99 — read from the card and checked by hand.

The Ertha Jo, Frontier Mentor deck plan

The roles the Forge fills for this commander, and how many cards of each.

Best cards for Ertha Jo, Frontier Mentor

Ranked by an engine that reads what each card does — its real cost, its delay and how reliably it works — rather than counting how often other people play it.

A creature with an activated ability worth copying or borrowing

  1. Ornithopter of Paradise2 mana
  2. Hangarback Walker0 mana
  3. Crashing Drawbridge2 mana
  4. Steel Overseer2 mana
  5. Giver of Runes1 mana
  6. Mikaeus, the Lunarch1 mana
  7. Skrelv, Defector Mite1 mana
  8. Weathered Wayfarer1 mana

Actually remove one problem permanent — preventing its damage is not removing it

  1. Path to Exile1 mana
  2. Swords to Plowshares1 mana
  3. Wild Magic Surge2 mana
  4. March of Otherworldly Light1 mana
  5. Generous Gift3 mana
  6. Erode1 mana
  7. Unwanted Remake1 mana
  8. Angelic Ascension2 mana

Find the exact card the plan needs

  1. Open the Armory2 mana
  2. Enlightened Tutor1 mana
  3. Kellan, the Fae-Blooded // Birthright Boon3 mana
  4. Templar Knight2 mana
  5. Idyllic Tutor3 mana
  6. Imperial Recruiter3 mana
  7. Ranger-Captain of Eos3 mana
  8. Loyal Tutor1 mana

Answer a whole board at once

  1. Vanquish the Horde8 mana
  2. Wrath of God4 mana
  3. Blasphemous Act9 mana
  4. Chain Reaction4 mana
  5. Day of Judgment4 mana
  6. Street Spasm1 mana
  7. Shatter the Sky4 mana
  8. Split Up3 mana

Refill your hand

  1. Esper Sentinel1 mana
  2. Ragavan, Nimble Pilferer1 mana
  3. Skullclamp1 mana
  4. Professional Face-Breaker3 mana
  5. Archivist of Oghma2 mana
  6. The One Ring4 mana
  7. Sticky Fingers1 mana
  8. Vexing Bauble1 mana

Keep a permanent you control alive through removal

  1. Flowering of the White Tree2 mana
  2. Hexing Squelcher2 mana
  3. Bastion Protector3 mana
  4. Codsworth, Handy Helper3 mana
  5. Avacyn, Angel of Hope8 mana
  6. Lightning Greaves2 mana
  7. Swiftfoot Boots2 mana
  8. Chaplain of Alms // Chapel Shieldgeist1 mana

Get ahead on mana

  1. Sol Ring1 mana
  2. Boros Signet2 mana
  3. Palladium Myr3 mana
  4. Worn Powerstone3 mana
  5. Chrome Mox0 mana
  6. Everflowing Chalice0 mana
  7. Mox Diamond0 mana
  8. Mana Vault1 mana

A permanent that does something every turn it is on the battlefield — the deck's body, for a commander whose text asks for nothing specific

  1. Crashing Drawbridge2 mana
  2. Cleric Class1 mana
  3. Bontu's Monument3 mana
  4. Mirror Entity3 mana
  5. Oketra's Monument3 mana
  6. Artist's Talent2 mana
  7. Goro-Goro, Disciple of Ryusei2 mana
  8. Roiling Vortex2 mana

Combos with Ertha Jo, Frontier Mentor

Known combos from Commander Spellbook that Ertha Jo, Frontier Mentor is a piece of, and how many decks list them.

Build this deck in the Arcane Forge →

Arcane Foundry is free to join and every tool is included: the Arcane Forge deck builder, the ARCANE Analyzer that scores a deck by simulating games rather than counting staples, a card scanner, a collection vault, and live webcam Commander tables. Read the guide · Browse all commanders · Pricing