Ertha Jo, Frontier Mentor
$0.13
$0.13Legendary Creature — Kor Advisor
How it feels to play against
Mildly Annoying
Some frustrating moments but still fun.
Popularity
Proven Option
Well-established with solid community support.
Ranking
#1543
Current Rank
#1558
Last Week
#1562
Last Month
Links & Decks
Combos
Debut Set
Decks on Moxfield
Decks on Archidekt
Scryfall
CardmarketNew Cards
Fresh cards from recent sets that players are experimenting with in Ertha Jo, Frontier Mentor decks.
Survey Mechan+15% Synergy
$0.08
Zookeeper Mechan+10% Synergy
$0.07
The Dominion Bracelet+9% Synergy
$0.89
Glittering Massif+1% Synergy
$0.61
Radiant Summit-4% Synergy
$2.18
High Synergy Cards
Cards that work exceptionally well with Ertha Jo, Frontier Mentor's abilities and overall game plan.
Humble Defector+72% Synergy
$0.15
Soulbright Flamekin+62% Synergy
$0.15
Brash Taunter+56% Synergy
$0.63
Yes Man, Personal Securitron+56% Synergy
$0.29
Jaxis, the Troublemaker+53% Synergy
$1.11
Loran of the Third Path+49% Synergy
$2.46
Realmbreaker, the Invasion Tree+48% Synergy
$0.49
Captivating Crew+48% Synergy
$0.19
Mishra's Bauble+46% Synergy
$1.93
Form a Posse+46% Synergy
$0.08
Top Cards
The most popular and reliable cards that form the backbone of successful Ertha Jo, Frontier Mentor decks.
Angelic Sell-Sword+45% Synergy
$0.33
Chaos Wand+45% Synergy
$0.20
Zirda, the Dawnwaker+44% Synergy
$0.44
Orthion, Hero of Lavabrink+44% Synergy
$4.59
Intrepid Hero+44% Synergy
$0.95
The Jolly Balloon Man+42% Synergy
$0.56
Mother of Runes+40% Synergy
$9.60
Thousand-Year Elixir+40% Synergy
$11.96
Path to Exile-6% Synergy
$0.96
Swords to Plowshares-10% Synergy
$1.28
Game Changers
Powerful cards that can single-handedly turn the tide of a game when resolved.
Jeska's Will-3% Synergy
$25.52
Teferi's Protection-8% Synergy
$50.22
Smothering Tithe-9% Synergy
$34.30
Deflecting Swat-9% Synergy
$50.95
Enlightened Tutor-11% Synergy
$37.00
Creatures
Essential creatures that complement Ertha Jo, Frontier Mentor's strategy through synergy, utility, or raw power.
Spikeshot Goblin+43% Synergy
$0.09
Hellspur Posse Boss+39% Synergy
$0.14
Drumbellower+36% Synergy
$9.37
Brigid, Hero of Kinsbaile+34% Synergy
$1.29
Marvin, Murderous Mimic+32% Synergy
$2.66
Bounty Agent+32% Synergy
$0.24
Furystoke Giant+32% Synergy
$2.97
Giver of Runes+28% Synergy
$6.98
Magda, the Hoardmaster+28% Synergy
$0.52
Chandra, Fire of Kaladesh+28% Synergy
$1.71
Adarkar Valkyrie+28% Synergy
$1.15
Spikeshot Elder+28% Synergy
$0.23
Kiki-Jiki, Mirror Breaker+27% Synergy
$10.26
Agrus Kos, Eternal Soldier+26% Synergy
$0.55
Skrelv, Defector Mite+25% Synergy
$1.61
Taii Wakeen, Perfect Shot+25% Synergy
$0.17
Brion Stoutarm+25% Synergy
$0.58
Auriok Bladewarden+23% Synergy
$0.13
Strago and Relm+21% Synergy
$0.16
Cathar Commando+20% Synergy
$0.10
Gilraen, Dúnedain Protector+19% Synergy
$0.37
Whiskervale Forerunner+17% Synergy
$0.19
Kamahl, Pit Fighter+17% Synergy
$0.16
Bloodlust Inciter+17% Synergy
$0.06
Goblin Sharpshooter+16% Synergy
$24.40
Giant Killer+15% Synergy
$0.25
The Warring Triad+15% Synergy
$0.76
Prickly Pair+15% Synergy
$0.04
Voldaren Thrillseeker+15% Synergy
$0.25
Cunning Sparkmage+14% Synergy
$0.29
Stun Sniper+14% Synergy
$0.08
Vulshok Sorcerer+14% Synergy
$0.24
Prodigal Pyromancer+14% Synergy
$0.14
Goblin Fireslinger+13% Synergy
$0.10
Endbringer+13% Synergy
$0.36
Jaya Ballard, Task Mage+13% Synergy
$0.15
Cinder Pyromancer+13% Synergy
$0.41
Chandra's Magmutt+12% Synergy
$0.05
Welcoming Vampire+11% Synergy
$0.86
Mangara, the Diplomat+11% Synergy
$0.71
Heartfire Hero+10% Synergy
$0.31
Sunset Strikemaster+10% Synergy
$0.21
Village Bell-Ringer+8% Synergy
$0.21
Claim Jumper+8% Synergy
$0.58
Witch Enchanter+7% Synergy
$4.17
Delney, Streetwise Lookout+7% Synergy
$33.97
Knight of the White Orchid+2% Synergy
$1.84
Sun Titan+1% Synergy
$0.28
Solemn Simulacrum-7% Synergy
$0.25
Esper Sentinel-12% Synergy
$45.59
Instants
Key instant-speed responses for protection, removal, and keeping Ertha Jo, Frontier Mentor safe.
To Arms!+24% Synergy
$0.19
Lightning Volley+15% Synergy
$0.08
Bovine Intervention+11% Synergy
$0.15
Rustler Rampage+10% Synergy
$0.13
Take the Bait+9% Synergy
$0.58
Semester's End+9% Synergy
$0.69
Legion Leadership+8% Synergy
$0.59
Return the Favor+8% Synergy
$1.47
Demand Answers+7% Synergy
$0.34
Dead Before Sunrise+7% Synergy
$0.12
Big Score+6% Synergy
$0.70
Stroke of Midnight+3% Synergy
$0.38
Your Temple Is Under Attack+3% Synergy
$0.24
Chaos Warp+2% Synergy
$0.50
Thrill of Possibility+2% Synergy
$0.08
Razorgrass Ambush+2% Synergy
$0.23
Clever Concealment+1% Synergy
$4.94
Ephemerate+1% Synergy
$3.60
Sejiri Shelter-1% Synergy
$1.70
Unexpected Windfall-1% Synergy
$1.00
Valakut Awakening-1% Synergy
$11.04
Dawn's Truce-3% Synergy
$6.18
Generous Gift-4% Synergy
$0.73
Abrade-5% Synergy
$0.10
Wear // Tear-8% Synergy
$1.07
Flawless Maneuver-13% Synergy
$17.03
Boros Charm-16% Synergy
$4.69
Sorceries
Important sorcery spells that advance Ertha Jo, Frontier Mentor's game plan and control the board.
Cut a Deal+12% Synergy
$0.27
Flame Fusillade+10% Synergy
$4.26
Farewell+6% Synergy
$4.03
Blasphemous Act+5% Synergy
$1.85
Austere Command+5% Synergy
$0.38
Sevinne's Reclamation+5% Synergy
$0.60
Ascend from Avernus+5% Synergy
$1.24
Requisition Raid+4% Synergy
$0.58
Starfall Invocation+4% Synergy
$0.52
Sundering Eruption+3% Synergy
$1.00
Promise of Loyalty+3% Synergy
$0.21
Secret Rendezvous+2% Synergy
$0.29
Faithless Looting-5% Synergy
$0.28
Vandalblast-8% Synergy
$3.74
Utility Artifacts
Versatile artifacts that provide ongoing value, card selection, or strategic advantages.
Magewright's Stone+30% Synergy
$6.20
Basilica Skullbomb+23% Synergy
$0.03
Stone of Erech+21% Synergy
$0.19
Urza's Bauble+20% Synergy
$4.53
Hylda's Crown of Winter+20% Synergy
$0.28
Agatha's Soul Cauldron+19% Synergy
$32.27
Collector's Cage+16% Synergy
$1.77
Haystack+15% Synergy
$1.74
Mindslaver+13% Synergy
$3.22
Rings of Brighthearth+12% Synergy
$3.79
Lithoform Engine+12% Synergy
$6.03
Wayfarer's Bauble+11% Synergy
$0.26
The Fire Crystal+11% Synergy
$4.59
Transmogrifying Wand+10% Synergy
$0.37
Illusionist's Bracers+9% Synergy
$4.10
Halo Fountain+9% Synergy
$5.16
Boom Box+9% Synergy
$0.05
Argent Dais+7% Synergy
$0.10
The Chain Veil+7% Synergy
$4.18
Battlemage's Bracers+6% Synergy
$4.03
Expert-Level Safe+6% Synergy
$0.12
Perilous Snare+5% Synergy
$0.38
Lavaspur Boots+4% Synergy
$0.84
Staff of Domination+4% Synergy
$4.63
Archaeomancer's Map0% Synergy
$3.12
Basilisk Collar-5% Synergy
$3.34
Skullclamp-6% Synergy
$4.87
Lightning Greaves-12% Synergy
$4.54
Swiftfoot Boots-13% Synergy
$1.32
Enchantments
Powerful enchantments that support Ertha Jo, Frontier Mentor's strategy and create lasting battlefield effects.
Brimstone Roundup+34% Synergy
$0.10
We Ride at Dawn+23% Synergy
$0.20
Fable of the Mirror-Breaker+20% Synergy
$6.63
Lassoed by the Law+20% Synergy
$0.06
Dazzling Theater // Prop Room+18% Synergy
$0.46
Seal of Cleansing+14% Synergy
$0.11
Kyren Negotiations+13% Synergy
$0.69
Soul Snare+12% Synergy
$0.09
Footfall Crater+12% Synergy
$0.23
Oath of Gideon+10% Synergy
$0.24
Rowan's Talent+8% Synergy
$0.25
Captive Flame+8% Synergy
$0.21
Rising of the Day+7% Synergy
$0.42
High Noon+7% Synergy
$2.25
Touch the Spirit Realm+7% Synergy
$0.47
Burning Anger+7% Synergy
$0.12
Trouble in Pairs+4% Synergy
$24.73
Smuggler's Share+4% Synergy
$3.36
City on Fire+2% Synergy
$7.34
Fiery Emancipation+1% Synergy
$9.69
Tocasia's Welcome0% Synergy
$1.54
Goblin Bombardment0% Synergy
$2.83
Land Tax-5% Synergy
$20.79
Planeswalkers
Planeswalkers that work alongside Ertha Jo, Frontier Mentor to provide ongoing value and board presence.
Teyo, Geometric Tactician+34% Synergy
$5.18
Chandra, Dressed to Kill+32% Synergy
$0.89
Chandra, Bold Pyromancer+27% Synergy
$3.64
Elspeth Resplendent+25% Synergy
$3.88
The Eternal Wanderer+22% Synergy
$0.88
The Wandering Emperor+20% Synergy
$3.18
Jeska, Thrice Reborn+17% Synergy
$4.96
Ajani Steadfast+17% Synergy
$1.56
Ajani, Caller of the Pride+16% Synergy
$1.06
Ajani Vengeant+16% Synergy
$1.69
Basri Ket+14% Synergy
$1.15
Elspeth, Knight-Errant+14% Synergy
$6.96
The Wanderer+14% Synergy
$0.27
Chandra, Torch of Defiance+13% Synergy
$4.03
Ajani, Adversary of Tyrants+13% Synergy
$1.20
Chandra, Flameshaper+13% Synergy
$1.22
Gideon Blackblade+11% Synergy
$0.93
Chandra, Flame's Fury+10% Synergy
$1.02
Nahiri, the Harbinger+9% Synergy
$0.48
Karn Liberated+9% Synergy
$2.92
Gideon of the Trials+8% Synergy
$1.26
Rowan Kenrith+8% Synergy
$0.71
Ajani, Inspiring Leader+8% Synergy
$7.63
Jaya, Venerated Firemage+7% Synergy
$0.16
Rowan, Fearless Sparkmage+7% Synergy
$0.65
Chandra, Legacy of Fire+7% Synergy
$1.00
Archangel Elspeth+6% Synergy
$3.33
Chandra, Heart of Fire+5% Synergy
$0.31
Elspeth, Storm Slayer0% Synergy
$34.00
Utility Lands
Non-basic lands that offer additional utility beyond just mana production.
Maze of Ith+34% Synergy
$7.45
Slayers' Stronghold+25% Synergy
$0.21
Sunhome, Fortress of the Legion+24% Synergy
$0.18
Eiganjo, Seat of the Empire+16% Synergy
$3.53
Labyrinth of Skophos+16% Synergy
$0.21
Rogue's Passage+13% Synergy
$0.32
Kor Haven+13% Synergy
$11.12
Ominous Cemetery+13% Synergy
$0.15
Access Tunnel+11% Synergy
$0.33
Drannith Ruins+11% Synergy
$0.27
Desert+9% Synergy
$1.22
Tyrite Sanctum+8% Synergy
$1.67
Interplanar Beacon+8% Synergy
$0.21
Karn's Bastion+7% Synergy
$1.30
Arid Archway+7% Synergy
$0.55
Mirrorpool+7% Synergy
$1.83
Sandstorm Verge+7% Synergy
$0.11
Flamekin Village+5% Synergy
$2.04
Nesting Grounds+5% Synergy
$0.18
Amonkhet Raceway+4% Synergy
$0.24
Scavenger Grounds+3% Synergy
$0.40
Hanweir Battlements+3% Synergy
$1.38
Eiganjo Castle+3% Synergy
$12.11
War Room+1% Synergy
$2.85
Restless Bivouac+1% Synergy
$0.31
Arena of Glory-1% Synergy
$9.32
Monumental Henge-1% Synergy
$0.51
Temple of the False God-3% Synergy
$0.15
Reliquary Tower-8% Synergy
$2.59
Mana Artifacts
Artifacts focused on mana acceleration and color fixing for consistent gameplay.
Bounty Board+35% Synergy
$0.52
Boros Signet+13% Synergy
$0.66
Talisman of Conviction+11% Synergy
$0.27
Sonic Screwdriver+11% Synergy
$0.59
Gatewatch Beacon+10% Synergy
$0.29
Mind Stone+9% Synergy
$0.21
Liquimetal Torque+8% Synergy
$1.81
Stonespeaker Crystal+7% Synergy
$0.34
Laser Screwdriver+7% Synergy
$0.49
Bandit's Haul+7% Synergy
$0.11
Aetheric Amplifier+6% Synergy
$2.84
Starnheim Memento+6% Synergy
$0.16
Fellwar Stone+5% Synergy
$1.34
Honor-Worn Shaku+5% Synergy
$0.41
Patriar's Seal+3% Synergy
$3.14
Cursed Mirror+2% Synergy
$1.28
Marble Diamond+2% Synergy
$0.15
Fire Diamond+2% Synergy
$0.27
Arcane Signet+1% Synergy
$0.52
Commander's Sphere-5% Synergy
$0.17
Thought Vessel-5% Synergy
$1.15
Sol Ring-10% Synergy
$1.24
Lands
The mana base foundation for Ertha Jo, Frontier Mentor decks, ensuring smooth and reliable mana development.
Abraded Bluffs+11% Synergy
$0.19
Sunscorched Divide+10% Synergy
$0.43
Legion Leadership+8% Synergy
$0.59
Sacred Peaks+8% Synergy
$0.11
Witch Enchanter+7% Synergy
$4.17
Myriad Landscape+6% Synergy
$0.21
Boros Garrison+5% Synergy
$0.18
Captivating Cave+5% Synergy
$0.06
Clifftop Retreat+4% Synergy
$0.27
Rugged Prairie+4% Synergy
$0.26
Exotic Orchard+4% Synergy
$0.27
Elegant Parlor+4% Synergy
$8.65
Escape Tunnel+4% Synergy
$0.24
Alpine Meadow+3% Synergy
$0.31
Sundering Eruption+3% Synergy
$1.00
Plaza of Heroes+3% Synergy
$5.70
Inspiring Vantage+2% Synergy
$1.46
Pinnacle Monk+2% Synergy
$1.63
Razorgrass Ambush+2% Synergy
$0.23
Lorehold Campus+2% Synergy
$0.08
Sundown Pass+1% Synergy
$5.31
Fabled Passage+1% Synergy
$5.01
Mountain0% Synergy
$0.06
Plains0% Synergy
$0.06
Battlefield Forge0% Synergy
$0.27
Temple of Triumph0% Synergy
$0.15
Prismatic Vista0% Synergy
$30.82
Spectator Seating-1% Synergy
$11.51
Evolving Wilds-1% Synergy
$0.07
Sunbaked Canyon-1% Synergy
$2.68
Terramorphic Expanse-1% Synergy
$0.18
Boros Guildgate-1% Synergy
$0.18
Sejiri Shelter-1% Synergy
$1.70
Valakut Awakening-1% Synergy
$11.04
Arid Mesa-2% Synergy
$26.74
Sacred Foundry-3% Synergy
$7.76
Furycalm Snarl-3% Synergy
$0.14
Sunbillow Verge-3% Synergy
$9.15
Plateau-3% Synergy
$326.19
Needleverge Pathway-4% Synergy
$3.29
Command Tower-5% Synergy
$0.30
Wind-Scarred Crag-5% Synergy
$0.04
Rustvale Bridge-5% Synergy
$0.20
Path of Ancestry-10% Synergy
$0.15
Similar Commanders
The following Commanders share a similar playing style, strategy, or theme like Ertha Jo, Frontier Mentor.
Lae'zel, Vlaakith's Champion // Guild Artisan
Lae'zel, Vlaakith's Champion // Passionate Archaeologist
Lae'zel, Vlaakith's Champion // Popular Entertainer
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Lae'zel, Vlaakith's Champion // Tavern Brawler
Alena, Kessig Trapper // Krark, the Thumbless
Djeru, With Eyes Open
Aya of Alexandria
Lae'zel, Vlaakith's Champion // Inspiring Leader
Lae'zel, Vlaakith's Champion // Veteran Soldier
Théoden, King of Rohan
Mabel, Heir to Cragflame
Nahiri, Forged in Fury
Livio, Oathsworn Sentinel // Rograkh, Son of Rohgahh
Livio, Oathsworn Sentinel // Toggo, Goblin Weaponsmith
Adriana, Captain of the Guard
Eivor, Battle-Ready
Jenny, Generated Anomaly
The War Doctor
The War Doctor // Amy Pond
The War Doctor // Barbara Wright
The War Doctor // Bill Potts
The War Doctor // Clara Oswald
The War Doctor // Dan Lewis
The War Doctor // Donna Noble
The War Doctor // Ian Chesterton
The War Doctor // Jo Grant
The War Doctor // Rose Tyler
The War Doctor // Ryan Sinclair
The War Doctor // Sarah Jane Smith
The War Doctor // Tegan Jovanka
The War Doctor // Yasmin Khan
Bruse Tarl, Roving Rancher
Reyav, Master Smith
Alena, Kessig Trapper // Alharu, Solemn Ritualist
Alena, Kessig Trapper // Ardenn, Intrepid Archaeologist
Alena, Kessig Trapper // Bruse Tarl, Boorish Herder
Alena, Kessig Trapper // Katerina of Myra's Marvels
Alena, Kessig Trapper // Keleth, Sunmane Familiar
Alena, Kessig Trapper // Livio, Oathsworn Sentinel