EDH Optimizer
Ertha Jo, Frontier Mentor
Legendary Creature — Kor Advisor · 2RW
Color identity: Red · White · Boros
Ertha Jo, Frontier Mentor is Boros (red and white): its deck can only run cards of those colors plus colorless ones.
Rules text:
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.
Reference price of the card: €0.17
Average lands in decks for Ertha Jo, Frontier Mentor: 36
Activated AbilitiesPlaneswalkersBurnTokensPingers+1/+1 CountersAggroArtifacts
Build your Ertha Jo, Frontier Mentor deck step by step, with in-depth analysis and AI optimization of your list.
🛠️ Build a deck for Ertha Jo, Frontier Mentor 📥 Analyze my deck🎲 How the average Ertha Jo, Frontier Mentor deck starts over 4,000 games
The list people actually play per EDHREC (the 99 most-included cards, with its average land count), simulated with the EDH Optimizer engine: hands, mulligans, lands, curve and commander. It does not model opponents; it measures whether the plan gets going.
Deck health of the average list: C+ (58/100)
- Consistency42
- Speed59
- Interaction67
- Resilience76
- Closing50
See the cards of the average deck · 99 cards, 36 lands (24 nonbasic, 6 Plains, 6 Mountain)
Arcane Signet · Humble Defector · Sol Ring · Soulbright Flamekin · Loran of the Third Path · Brash Taunter · Boros Signet · Talisman of Conviction · Yes Man, Personal Securitron · Jaxis, the Troublemaker · Swords to Plowshares · The Jolly Balloon Man · Mother of Runes · Mishra's Bauble · Path to Exile · Realmbreaker, the Invasion Tree · Angelic Sell-Sword · Captivating Crew · Intrepid Hero · Form a Posse · Zirda, the Dawnwaker · Thousand-Year Elixir · Chandra, Dressed to Kill · Orthion, Hero of Lavabrink · Spikeshot Goblin · Chaos Wand · Hellspur Posse Boss · Marvin, Murderous Mimic · Blasphemous Act · Brimstone Roundup · Drumbellower · Boros Charm · Bounty Agent · Bounty Board · Giver of Runes · Mind Stone · Teyo, Geometric Tactician · Brigid, Hero of Kinsbaile · Chandra, Bold Pyromancer · Magda, the Hoardmaster · Spikeshot Elder · Chandra, Fire of Kaladesh // Chandra, Roaring Flame · Furystoke Giant · Generous Gift · Kiki-Jiki, Mirror Breaker · Skrelv, Defector Mite · Chaos Warp · Fellwar Stone · Legion Leadership // Legion Stronghold · Magewright's Stone · Cathar Commando · Elspeth Resplendent · Strago and Relm · Agrus Kos, Eternal Soldier · Auriok Bladewarden · Swiftfoot Boots · Taii Wakeen, Perfect Shot · The Eternal Wanderer · The Wandering Emperor · Brion Stoutarm · To Arms! · Urza's Bauble · Adarkar Valkyrie · Command Tower · Clifftop Retreat · Battlefield Forge · Slayers' Stronghold · Rugged Prairie · Boros Garrison · Rogue's Passage · Sacred Foundry · Sunhome, Fortress of the Legion · Furycalm Snarl · Spectator Seating · Sundown Pass · Temple of Triumph · Maze of Ith · Sunscorched Divide · Exotic Orchard · Eiganjo, Seat of the Empire · Arid Mesa · Fire Nation Palace · Myriad Landscape · Needleverge Pathway // Pillarverge Pathway · Sunbillow Verge · Elegant Parlor · Radiant Summit
🃏 Recommended cards for Ertha Jo, Frontier Mentor
The highest-synergy cards in decks for Ertha Jo, Frontier Mentor, with their inclusion rate.
| Card | Inclusion | Synergy |
|---|---|---|
| Humble Defector | 74% | +72% |
| Soulbright Flamekin | 66% | +65% |
| Brash Taunter | 63% | +57% |
| Yes Man, Personal Securitron | 57% | +55% |
| Loran of the Third Path | 64% | +51% |
| Jaxis, the Troublemaker | 53% | +51% |
| Realmbreaker, the Invasion Tree | 48% | +47% |
| Angelic Sell-Sword | 47% | +47% |
| Mishra's Bauble | 48% | +46% |
| The Jolly Balloon Man | 53% | +46% |
| Intrepid Hero | 44% | +44% |
| Captivating Crew | 45% | +43% |
| Form a Posse | 43% | +42% |
| Spikeshot Goblin | 41% | +41% |
| Chandra, Dressed to Kill | 41% | +40% |
| Orthion, Hero of Lavabrink | 41% | +40% |
| Chaos Wand | 40% | +40% |
| Zirda, the Dawnwaker | 43% | +39% |
| Thousand-Year Elixir | 42% | +39% |
| Hellspur Posse Boss | 38% | +38% |
| Mother of Runes | 50% | +37% |
| Brimstone Roundup | 35% | +34% |
| Marvin, Murderous Mimic | 38% | +34% |
| Bounty Board | 34% | +34% |
💰 The best cards for your Ertha Jo, Frontier Mentor deck, by budget
Three tiers based on the maximum price PER CARD you are willing to pay. Paste your list and hit Optimize: you pick that cap and the AI only suggests swaps that fit under it.
Tier 1 · Budget up to €2/card
The most value for almost nothing. Coming from a precon? Start here.
- Humble Defector
- Soulbright Flamekin
- Brash Taunter
- Yes Man, Personal Securitron
- Jaxis, the Troublemaker
- Realmbreaker, the Invasion Tree
Tier 2 · Balanced up to €10/card
The real step up: pieces that are no longer cheap but still sensible.
- Loran of the Third Path
- Orthion, Hero of Lavabrink
- Mother of Runes
- Teyo, Geometric Tactician
- Maze of Ith
- Chandra, Bold Pyromancer
Tier 3 · No cap no cap
The cards your price cap was hiding from you.
- Thousand-Year Elixir
- Goblin Sharpshooter
- Agatha's Soul Cauldron
- Kor Haven
Reference prices (cheapest English printing). They change daily.
♾️ Known combos with Ertha Jo, Frontier Mentor
- Rings of Brighthearth + Basalt Monolith → Infinite colorless mana
- Blasphemous Act + Repercussion → Near-infinite damage to all players
- Kiki-Jiki, Mirror Breaker + Zealous Conscripts → Infinite creature tokens with haste, Infinite death triggers, Infinite ETB, Infinite LTB, Infinite sacrifice triggers
- Combat Celebrant + Kiki-Jiki, Mirror Breaker → Infinite combat phases, Infinite creature tokens with haste, Infinite ETB
- Kiki-Jiki, Mirror Breaker + Helm of the Host → Infinite death triggers, Infinite ETB, Infinite LTB, Infinite sacrifice triggers, Infinite tapped creature tokens, Infinite tapped creature tokens until end of turn
- Goblin Sharpshooter + Basilisk Collar → Lock, Destroy all creatures opponents control, From now on, destroy any creatures opponents control at instant speed
Other commanders
Frequently asked questions
What is Ertha Jo, Frontier Mentor's color identity?
Ertha Jo, Frontier Mentor is Boros (red and white): its deck can only run cards of those colors plus colorless ones. Color identity comes from every mana symbol on the card, including those in the rules text, not just the casting cost.
What turn does Ertha Jo, Frontier Mentor come down, and how often does the deck get stuck?
In the average Ertha Jo, Frontier Mentor deck (the 99 most-included cards per EDHREC, with 36 lands), simulated 4,000 times, the commander comes down on turn 3.7 on average and is on the battlefield before turn 7 in 99 % of games. It misses at least one land drop in the first six turns 27 % of the time and floods 20 %. Deck health: C+ (58/100).
How many lands should a Ertha Jo, Frontier Mentor deck run?
Real Ertha Jo, Frontier Mentor decks run 36 lands on average. That is a starting point, not a rule: a lower curve can shave one or two, big-mana builds want more. The EDH Optimizer simulator tells you, over 10,000 games, how often you get mana screwed or flooded with your exact count.
What are the best cards for Ertha Jo, Frontier Mentor?
The three highest-synergy cards are Humble Defector, Soulbright Flamekin, Brash Taunter. This page lists the top 24 with their real inclusion rate in Ertha Jo, Frontier Mentor decks.
What combos does Ertha Jo, Frontier Mentor have?
Ertha Jo, Frontier Mentor has 6 known combos. The most popular one is Rings of Brighthearth + Basalt Monolith. Note that two-card combos raise your deck's bracket, so it is worth knowing which ones you are running before you sit down.
How much does a Ertha Jo, Frontier Mentor deck cost?
You can start cheap: Humble Defector, Soulbright Flamekin, Brash Taunter are under €2 each. The "Level up" section on this page splits the best cards into three price caps PER CARD (up to €2, up to €10 and no cap), and the optimizer only suggests swaps that fit the cap you pick.