Ertha Jo, Frontier Mentor
$0.10
$0.10Legendary 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
#1677
Current Rank
#1538
Last Week
#1568
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.
Strago and Relm+19% Synergy
$0.28
The Fire Crystal+11% Synergy
$4.85
The Warring Triad+11% Synergy
$1.37
Survey Mechan+9% Synergy
$0.09
Glittering Massif+7% Synergy
$0.78
High Synergy Cards
Cards that work exceptionally well with Ertha Jo, Frontier Mentor's abilities and overall game plan.
Humble Defector+72% Synergy
$0.14
Soulbright Flamekin+62% Synergy
$0.15
Yes Man, Personal Securitron+55% Synergy
$0.32
Brash Taunter+55% Synergy
$0.64
Jaxis, the Troublemaker+53% Synergy
$1.15
Loran of the Third Path+48% Synergy
$2.78
Captivating Crew+48% Synergy
$0.16
Realmbreaker, the Invasion Tree+47% Synergy
$0.50
Form a Posse+46% Synergy
$0.08
Mishra's Bauble+46% Synergy
$1.34
Top Cards
The most popular and reliable cards that form the backbone of successful Ertha Jo, Frontier Mentor decks.
Orthion, Hero of Lavabrink+45% Synergy
$5.57
Intrepid Hero+45% Synergy
$1.00
Angelic Sell-Sword+45% Synergy
$0.24
Chaos Wand+45% Synergy
$0.18
Zirda, the Dawnwaker+44% Synergy
$0.49
The Jolly Balloon Man+41% Synergy
$0.53
Thousand-Year Elixir+40% Synergy
$11.66
Mother of Runes+39% Synergy
$6.79
Path to Exile-7% Synergy
$1.27
Swords to Plowshares-11% Synergy
$0.80
Game Changers
Powerful cards that can single-handedly turn the tide of a game when resolved.
Jeska's Will-3% Synergy
$26.15
Smothering Tithe-9% Synergy
$34.98
Teferi's Protection-9% Synergy
$45.06
Deflecting Swat-9% Synergy
$46.20
Creatures
Essential creatures that complement Ertha Jo, Frontier Mentor's strategy through synergy, utility, or raw power.
Spikeshot Goblin+43% Synergy
$0.07
Hellspur Posse Boss+39% Synergy
$0.16
Drumbellower+36% Synergy
$7.95
Marvin, Murderous Mimic+33% Synergy
$1.69
Brigid, Hero of Kinsbaile+33% Synergy
$1.45
Bounty Agent+32% Synergy
$0.27
Furystoke Giant+32% Synergy
$2.83
Giver of Runes+30% Synergy
$6.86
Chandra, Fire of Kaladesh+30% Synergy
$2.26
Magda, the Hoardmaster+28% Synergy
$0.38
Adarkar Valkyrie+28% Synergy
$1.10
Spikeshot Elder+28% Synergy
$0.23
Kiki-Jiki, Mirror Breaker+26% Synergy
$9.06
Agrus Kos, Eternal Soldier+26% Synergy
$0.50
Brion Stoutarm+25% Synergy
$0.55
Skrelv, Defector Mite+24% Synergy
$1.24
Taii Wakeen, Perfect Shot+24% Synergy
$0.21
Auriok Bladewarden+22% Synergy
$0.05
Cathar Commando+20% Synergy
$0.10
Gilraen, Dúnedain Protector+19% Synergy
$0.30
Bloodlust Inciter+17% Synergy
$0.03
Kamahl, Pit Fighter+17% Synergy
$0.14
Whiskervale Forerunner+16% Synergy
$0.18
Goblin Sharpshooter+16% Synergy
$24.49
Giant Killer+16% Synergy
$0.23
Prickly Pair+15% Synergy
$0.04
Cunning Sparkmage+14% Synergy
$0.32
Voldaren Thrillseeker+14% Synergy
$0.23
Prodigal Pyromancer+14% Synergy
$0.14
Stun Sniper+14% Synergy
$0.06
Goblin Fireslinger+14% Synergy
$0.10
Vulshok Sorcerer+13% Synergy
$0.24
Jaya Ballard, Task Mage+13% Synergy
$0.14
Cinder Pyromancer+13% Synergy
$0.43
Endbringer+13% Synergy
$0.31
Chandra's Magmutt+12% Synergy
$0.06
Welcoming Vampire+11% Synergy
$0.80
Syr Carah, the Bold+11% Synergy
$0.19
Mangara, the Diplomat+10% Synergy
$0.61
Heartfire Hero+10% Synergy
$0.32
Sunset Strikemaster+10% Synergy
$0.22
Hanged Executioner+10% Synergy
$0.11
Village Bell-Ringer+8% Synergy
$0.22
Claim Jumper+8% Synergy
$0.91
Delney, Streetwise Lookout+7% Synergy
$34.83
Witch Enchanter+6% Synergy
$3.39
Knight of the White Orchid+2% Synergy
$1.92
Sun Titan0% Synergy
$0.35
Solemn Simulacrum-7% Synergy
$0.26
Esper Sentinel-12% Synergy
$42.20
Instants
Key instant-speed responses for protection, removal, and keeping Ertha Jo, Frontier Mentor safe.
To Arms!+25% Synergy
$0.19
Lightning Volley+15% Synergy
$0.08
Bovine Intervention+11% Synergy
$0.15
Rustler Rampage+11% Synergy
$0.14
Semester's End+9% Synergy
$0.71
Legion Leadership+8% Synergy
$0.48
Big Score+8% Synergy
$0.62
Take the Bait+8% Synergy
$0.56
Return the Favor+8% Synergy
$1.38
Dead Before Sunrise+8% Synergy
$0.14
Demand Answers+7% Synergy
$0.28
Your Temple Is Under Attack+4% Synergy
$0.28
Stroke of Midnight+3% Synergy
$0.31
Thrill of Possibility+2% Synergy
$0.06
Razorgrass Ambush+2% Synergy
$0.22
Chaos Warp+1% Synergy
$0.34
Ephemerate+1% Synergy
$3.38
Clever Concealment0% Synergy
$8.15
Unexpected Windfall0% Synergy
$0.98
Sejiri Shelter-1% Synergy
$1.76
Valakut Awakening-1% Synergy
$11.68
Dawn's Truce-4% Synergy
$6.35
Generous Gift-5% Synergy
$0.84
Abrade-5% Synergy
$0.15
Wear // Tear-8% Synergy
$1.20
Flawless Maneuver-13% Synergy
$16.24
Boros Charm-17% Synergy
$4.90
Sorceries
Important sorcery spells that advance Ertha Jo, Frontier Mentor's game plan and control the board.
Cut a Deal+13% Synergy
$0.28
Flame Fusillade+10% Synergy
$4.21
Farewell+7% Synergy
$4.30
Sevinne's Reclamation+6% Synergy
$0.39
Blasphemous Act+5% Synergy
$1.13
Austere Command+5% Synergy
$0.44
Requisition Raid+4% Synergy
$0.51
Ascend from Avernus+4% Synergy
$1.21
Promise of Loyalty+3% Synergy
$0.23
Secret Rendezvous+3% Synergy
$0.32
Starfall Invocation+3% Synergy
$0.59
Sundering Eruption+2% Synergy
$1.03
Faithless Looting-5% Synergy
$0.29
Vandalblast-8% Synergy
$2.73
Utility Artifacts
Versatile artifacts that provide ongoing value, card selection, or strategic advantages.
Magewright's Stone+30% Synergy
$5.81
Basilica Skullbomb+23% Synergy
$0.02
Stone of Erech+20% Synergy
$0.18
Hylda's Crown of Winter+20% Synergy
$0.23
Urza's Bauble+19% Synergy
$3.56
Agatha's Soul Cauldron+19% Synergy
$61.02
Haystack+15% Synergy
$1.62
Collector's Cage+15% Synergy
$1.86
Lithoform Engine+13% Synergy
$5.78
Mindslaver+13% Synergy
$3.14
Rings of Brighthearth+12% Synergy
$4.02
Wayfarer's Bauble+10% Synergy
$0.24
Transmogrifying Wand+10% Synergy
$0.24
Illusionist's Bracers+9% Synergy
$4.01
Halo Fountain+9% Synergy
$5.26
Boom Box+9% Synergy
$0.06
The Chain Veil+8% Synergy
$3.91
Argent Dais+7% Synergy
$0.10
Battlemage's Bracers+6% Synergy
$3.04
Expert-Level Safe+6% Synergy
$0.08
Lavaspur Boots+5% Synergy
$1.32
Perilous Snare+5% Synergy
$0.27
Staff of Domination+4% Synergy
$4.05
Spear of Heliod+4% Synergy
$0.97
Archaeomancer's Map0% Synergy
$4.31
Basilisk Collar-3% Synergy
$3.11
Skullclamp-6% Synergy
$5.02
Lightning Greaves-13% Synergy
$4.45
Swiftfoot Boots-14% Synergy
$1.30
Enchantments
Powerful enchantments that support Ertha Jo, Frontier Mentor's strategy and create lasting battlefield effects.
Brimstone Roundup+34% Synergy
$0.08
We Ride at Dawn+24% Synergy
$0.20
Lassoed by the Law+21% Synergy
$0.04
Fable of the Mirror-Breaker+20% Synergy
$7.33
Dazzling Theater // Prop Room+18% Synergy
$0.58
Seal of Cleansing+13% Synergy
$0.17
Kyren Negotiations+13% Synergy
$0.74
Footfall Crater+12% Synergy
$0.23
Soul Snare+11% Synergy
$0.10
Oath of Gideon+11% Synergy
$0.23
Rowan's Talent+8% Synergy
$0.20
Rising of the Day+7% Synergy
$0.47
Touch the Spirit Realm+7% Synergy
$0.43
Captive Flame+7% Synergy
$0.18
High Noon+6% Synergy
$3.91
Burning Anger+6% Synergy
$0.09
Trouble in Pairs+4% Synergy
$26.40
Smuggler's Share+4% Synergy
$2.36
City on Fire+2% Synergy
$5.62
Fiery Emancipation+2% Synergy
$8.53
Tocasia's Welcome0% Synergy
$1.40
Goblin Bombardment0% Synergy
$3.19
Land Tax-5% Synergy
$21.01
Planeswalkers
Planeswalkers that work alongside Ertha Jo, Frontier Mentor to provide ongoing value and board presence.
Teyo, Geometric Tactician+34% Synergy
$4.77
Chandra, Dressed to Kill+30% Synergy
$1.00
Chandra, Bold Pyromancer+27% Synergy
$3.89
Elspeth Resplendent+26% Synergy
$3.72
The Eternal Wanderer+21% Synergy
$0.84
The Wandering Emperor+20% Synergy
$3.83
Jeska, Thrice Reborn+18% Synergy
$5.10
Ajani Vengeant+17% Synergy
$1.71
Ajani Steadfast+16% Synergy
$1.32
Ajani, Caller of the Pride+15% Synergy
$0.45
Elspeth, Knight-Errant+15% Synergy
$6.89
The Wanderer+14% Synergy
$0.27
Chandra, Flameshaper+14% Synergy
$0.97
Basri Ket+13% Synergy
$1.35
Ajani, Adversary of Tyrants+13% Synergy
$1.41
Chandra, Torch of Defiance+12% Synergy
$3.07
Gideon Blackblade+11% Synergy
$0.91
Chandra, Flame's Fury+10% Synergy
$1.01
Nahiri, the Harbinger+8% Synergy
$0.56
Gideon of the Trials+8% Synergy
$1.53
Rowan Kenrith+8% Synergy
$0.63
Karn Liberated+8% Synergy
$2.92
Ajani, Inspiring Leader+8% Synergy
$7.64
Jaya, Venerated Firemage+8% Synergy
$0.17
Rowan, Fearless Sparkmage+7% Synergy
$0.65
Chandra, Legacy of Fire+7% Synergy
$0.70
Archangel Elspeth+6% Synergy
$4.07
Chandra, Heart of Fire+5% Synergy
$0.28
Chandra, Pyromaster+5% Synergy
$0.80
Elspeth, Storm Slayer+1% Synergy
$30.03
Utility Lands
Non-basic lands that offer additional utility beyond just mana production.
Maze of Ith+33% Synergy
$7.01
Sunhome, Fortress of the Legion+24% Synergy
$0.22
Slayers' Stronghold+23% Synergy
$0.22
Eiganjo, Seat of the Empire+16% Synergy
$3.65
Labyrinth of Skophos+16% Synergy
$0.25
Rogue's Passage+14% Synergy
$0.27
Ominous Cemetery+13% Synergy
$0.16
Kor Haven+12% Synergy
$10.98
Access Tunnel+11% Synergy
$0.36
Drannith Ruins+11% Synergy
$0.31
Desert+9% Synergy
$0.99
Tyrite Sanctum+8% Synergy
$2.02
Interplanar Beacon+8% Synergy
$0.17
Karn's Bastion+7% Synergy
$0.66
Arid Archway+7% Synergy
$0.54
Mirrorpool+7% Synergy
$1.91
Sandstorm Verge+7% Synergy
$0.13
Flamekin Village+5% Synergy
$1.93
Nesting Grounds+5% Synergy
$0.24
Hanweir Battlements+4% Synergy
$0.94
Amonkhet Raceway+4% Synergy
$0.24
Scavenger Grounds+3% Synergy
$0.40
Eiganjo Castle+3% Synergy
$12.78
Restless Bivouac+1% Synergy
$0.36
War Room0% Synergy
$2.73
Arena of Glory-1% Synergy
$11.65
Temple of the False God-3% Synergy
$0.14
Reliquary Tower-9% Synergy
$1.98
Mana Artifacts
Artifacts focused on mana acceleration and color fixing for consistent gameplay.
Bounty Board+36% Synergy
$0.57
Boros Signet+11% Synergy
$0.47
Talisman of Conviction+10% Synergy
$0.33
Sonic Screwdriver+10% Synergy
$0.56
Mind Stone+9% Synergy
$0.22
Liquimetal Torque+9% Synergy
$1.29
Gatewatch Beacon+9% Synergy
$0.29
Bandit's Haul+8% Synergy
$0.08
Stonespeaker Crystal+7% Synergy
$0.30
Laser Screwdriver+7% Synergy
$0.47
Starnheim Memento+7% Synergy
$0.15
Aetheric Amplifier+6% Synergy
$2.35
Fellwar Stone+4% Synergy
$1.12
Patriar's Seal+4% Synergy
$1.79
Cursed Mirror+2% Synergy
$0.96
Marble Diamond+2% Synergy
$0.19
Fire Diamond+2% Synergy
$0.24
Arcane Signet+1% Synergy
$0.51
Commander's Sphere-5% Synergy
$0.16
Thought Vessel-5% Synergy
$1.33
Sol Ring-10% Synergy
$1.07
Lands
The mana base foundation for Ertha Jo, Frontier Mentor decks, ensuring smooth and reliable mana development.
Abraded Bluffs+12% Synergy
$0.25
Sunscorched Divide+10% Synergy
$0.42
Legion Leadership+8% Synergy
$0.48
Sacred Peaks+8% Synergy
$0.15
Witch Enchanter+6% Synergy
$3.39
Boros Garrison+5% Synergy
$0.20
Myriad Landscape+5% Synergy
$0.11
Elegant Parlor+5% Synergy
$11.24
Captivating Cave+5% Synergy
$0.10
Rugged Prairie+4% Synergy
$0.21
Exotic Orchard+4% Synergy
$0.45
Plaza of Heroes+4% Synergy
$6.72
Escape Tunnel+4% Synergy
$0.39
Clifftop Retreat+3% Synergy
$0.28
Alpine Meadow+3% Synergy
$0.29
Inspiring Vantage+2% Synergy
$1.68
Sundering Eruption+2% Synergy
$1.03
Pinnacle Monk+2% Synergy
$1.74
Razorgrass Ambush+2% Synergy
$0.22
Lorehold Campus+2% Synergy
$0.09
Mountain+1% Synergy
$0.06
Sundown Pass+1% Synergy
$4.49
Fabled Passage+1% Synergy
$3.53
Plains0% Synergy
$0.05
Battlefield Forge0% Synergy
$0.36
Temple of Triumph0% Synergy
$0.34
Prismatic Vista0% Synergy
$30.44
Evolving Wilds-1% Synergy
$0.23
Sunbaked Canyon-1% Synergy
$2.79
Terramorphic Expanse-1% Synergy
$0.28
Sejiri Shelter-1% Synergy
$1.76
Valakut Awakening-1% Synergy
$11.68
Spectator Seating-2% Synergy
$11.54
Arid Mesa-2% Synergy
$24.53
Sunbillow Verge-2% Synergy
$7.38
Boros Guildgate-2% Synergy
$0.13
Furycalm Snarl-3% Synergy
$0.17
Sacred Foundry-3% Synergy
$8.57
Plateau-3% Synergy
$328.61
Needleverge Pathway-5% Synergy
$3.06
Wind-Scarred Crag-5% Synergy
$0.07
Rustvale Bridge-5% Synergy
$0.33
Command Tower-6% Synergy
$0.22
Path of Ancestry-10% Synergy
$0.18
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
Lae'zel, Vlaakith's Champion // Dragon Cultist
Lae'zel, Vlaakith's Champion // Tavern Brawler
Alena, Kessig Trapper // Krark, the Thumbless
Djeru, With Eyes Open
Lae'zel, Vlaakith's Champion // Inspiring Leader
Lae'zel, Vlaakith's Champion // Veteran Soldier
Aya of Alexandria
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