Ertha Jo, Frontier Mentor (Commander) - Core Activated Abilities

Ertha Jo, Frontier Mentor
Rank #1,750
6decks
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Mike Carrozza
May 6, 2026
Mike Carrozza
Am I the Bolas? - Ultimate Permanent Exile
This week on Am I the Bolas?, Rule Zero discussions and why they're important. Got a Game Changer in your deck? Does that make it Bracket 4?
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Humble Defector
83%inclusion5 decks6 decks
81%synergy
Intrepid Hero
67%inclusion4 decks6 decks
66%synergy
Brash Taunter
67%inclusion4 decks6 decks
61%synergy
Loran of the Third Path
67%inclusion4 decks6 decks
54%synergy
Mother of Runes
67%inclusion4 decks6 decks
54%synergy
Creatures
Yes Man, Personal Securitron
50%inclusion3 decks6 decks
48%synergy
Taii Wakeen, Perfect Shot
50%inclusion3 decks6 decks
49%synergy
Marvin, Murderous Mimic
50%inclusion3 decks6 decks
45%synergy
Zirda, the Dawnwaker
50%inclusion3 decks6 decks
46%synergy
Soulbright Flamekin
50%inclusion3 decks6 decks
49%synergy
Giant Killer
50%inclusion3 decks6 decks
50%synergy
Chandra's Magmutt
50%inclusion3 decks6 decks
50%synergy
The Warring Triad
50%inclusion3 decks6 decks
49%synergy
Kirol, Attentive First-Year
50%inclusion1 decks2 decks
44%synergy
Bre of Clan Stoutarm
50%inclusion1 decks2 decks
46%synergy
Chrome Dome
50%inclusion1 decks2 decks
50%synergy
Drumbellower
33%inclusion2 decks6 decks
31%synergy
Hellspur Posse Boss
33%inclusion2 decks6 decks
33%synergy
Myr Scrapling
33%inclusion2 decks6 decks
33%synergy
Vithian Stinger
33%inclusion2 decks6 decks
33%synergy
Auriok Bladewarden
33%inclusion2 decks6 decks
33%synergy
Prodigal Pyromancer
33%inclusion2 decks6 decks
33%synergy
Goblin Fireslinger
33%inclusion2 decks6 decks
33%synergy
Spikeshot Goblin
33%inclusion2 decks6 decks
33%synergy
Chandra, Fire of Kaladesh
33%inclusion2 decks6 decks
33%synergy
Vulshok Sorcerer
33%inclusion2 decks6 decks
33%synergy
Leonin Battlemage
33%inclusion2 decks6 decks
33%synergy
The Jolly Balloon Man
33%inclusion2 decks6 decks
27%synergy
Spikeshot Elder
33%inclusion2 decks6 decks
33%synergy
Vikya, Scorching Stalwart
33%inclusion2 decks6 decks
33%synergy
Fanatical Firebrand
33%inclusion2 decks6 decks
33%synergy
Strago and Relm
33%inclusion2 decks6 decks
33%synergy
Solemn Simulacrum
17%inclusion1 decks6 decks
-5%synergy
Witch Enchanter
17%inclusion1 decks6 decks
3%synergy
Power Plant Worker
17%inclusion1 decks6 decks
17%synergy
Onakke Oathkeeper
17%inclusion1 decks6 decks
16%synergy
Furystoke Giant
17%inclusion1 decks6 decks
17%synergy
Cathedral Sanctifier
17%inclusion1 decks6 decks
17%synergy
Kamahl, Pit Fighter
17%inclusion1 decks6 decks
17%synergy
Valakut Invoker
17%inclusion1 decks6 decks
17%synergy
Trusted Pegasus
17%inclusion1 decks6 decks
17%synergy
Foundry Inspector
17%inclusion1 decks6 decks
7%synergy
Heartfire Immolator
17%inclusion1 decks6 decks
17%synergy
Skrelv, Defector Mite
17%inclusion1 decks6 decks
11%synergy
Oasis Gardener
17%inclusion1 decks6 decks
16%synergy
Angel of Condemnation
17%inclusion1 decks6 decks
17%synergy
Adarkar Valkyrie
17%inclusion1 decks6 decks
16%synergy
Deadeye Duelist
17%inclusion1 decks6 decks
17%synergy
Angrath's Marauders
17%inclusion1 decks6 decks
13%synergy
Tower Worker
17%inclusion1 decks6 decks
17%synergy
Orthion, Hero of Lavabrink
17%inclusion1 decks6 decks
15%synergy
Hushbringer
17%inclusion1 decks6 decks
16%synergy
Bronze Walrus
17%inclusion1 decks6 decks
16%synergy
Infantry Veteran
17%inclusion1 decks6 decks
17%synergy
Frontier Seeker
17%inclusion1 decks6 decks
17%synergy
Instants
Chaos Warp
33%inclusion2 decks6 decks
3%synergy
Boros Charm
33%inclusion2 decks6 decks
-14%synergy
Wear // Tear
33%inclusion2 decks6 decks
14%synergy
Swords to Plowshares
33%inclusion2 decks6 decks
-33%synergy
Demand Answers
33%inclusion2 decks6 decks
25%synergy
Abrade
33%inclusion2 decks6 decks
21%synergy
Kabira Takedown
17%inclusion1 decks6 decks
14%synergy
Lapse of Certainty
17%inclusion1 decks6 decks
16%synergy
Jaya's Greeting
17%inclusion1 decks6 decks
17%synergy
Thrill of Possibility
17%inclusion1 decks6 decks
5%synergy
Fling
17%inclusion1 decks6 decks
14%synergy
Topple the Statue
17%inclusion1 decks6 decks
17%synergy
Gods Willing
17%inclusion1 decks6 decks
12%synergy
Soul's Fire
17%inclusion1 decks6 decks
15%synergy
Tibalt's Trickery
17%inclusion1 decks6 decks
12%synergy
Flowstone Infusion
17%inclusion1 decks6 decks
17%synergy
To Arms!
17%inclusion1 decks6 decks
16%synergy
Trostani's Judgment
17%inclusion1 decks6 decks
17%synergy
Brute Force
17%inclusion1 decks6 decks
15%synergy
Stroke of Midnight
17%inclusion1 decks6 decks
0%synergy
Shock
17%inclusion1 decks6 decks
15%synergy
Legion Leadership
17%inclusion1 decks6 decks
-1%synergy
Righteous Blow
17%inclusion1 decks6 decks
17%synergy
Inspired Charge
17%inclusion1 decks6 decks
17%synergy
Path to Exile
17%inclusion1 decks6 decks
-40%synergy
You Come to the Gnoll Camp
17%inclusion1 decks6 decks
17%synergy
Take Up the Shield
17%inclusion1 decks6 decks
13%synergy
Burn Bright
17%inclusion1 decks6 decks
17%synergy
Rustler Rampage
17%inclusion1 decks6 decks
16%synergy
Lightning Strike
17%inclusion1 decks6 decks
15%synergy
Generous Gift
17%inclusion1 decks6 decks
-15%synergy
Sorceries
Renegade Tactics
33%inclusion2 decks6 decks
32%synergy
Form a Posse
33%inclusion2 decks6 decks
32%synergy
Smash to Dust
33%inclusion2 decks6 decks
33%synergy
Thrilling Discovery
33%inclusion2 decks6 decks
27%synergy
Promise of Loyalty
33%inclusion2 decks6 decks
28%synergy
Austere Command
17%inclusion1 decks6 decks
1%synergy
Jaya's Firenado
17%inclusion1 decks6 decks
17%synergy
Mizzium Mortars
17%inclusion1 decks6 decks
16%synergy
Expel the Interlopers
17%inclusion1 decks6 decks
16%synergy
Blasphemous Act
17%inclusion1 decks6 decks
-16%synergy
Vandalize
17%inclusion1 decks6 decks
17%synergy
Taunt from the Rampart
17%inclusion1 decks6 decks
10%synergy
Wild Guess
17%inclusion1 decks6 decks
16%synergy
The Battle of Bywater
17%inclusion1 decks6 decks
12%synergy
Kick in the Door
17%inclusion1 decks6 decks
16%synergy
Wanderer's Strike
17%inclusion1 decks6 decks
16%synergy
Trash for Treasure
17%inclusion1 decks6 decks
15%synergy
Reckless Handling
17%inclusion1 decks6 decks
13%synergy
Utility Artifacts
Thousand-Year Elixir
50%inclusion3 decks6 decks
47%synergy
Magewright's Stone
50%inclusion3 decks6 decks
48%synergy
Chaos Wand
33%inclusion2 decks6 decks
33%synergy
Lithoform Engine
33%inclusion2 decks6 decks
32%synergy
Illusionist's Bracers
33%inclusion2 decks6 decks
29%synergy
Realmbreaker, the Invasion Tree
33%inclusion2 decks6 decks
33%synergy
Collector's Cage
33%inclusion2 decks6 decks
33%synergy
Transmogrifying Wand
33%inclusion2 decks6 decks
33%synergy
Mindslaver
33%inclusion2 decks6 decks
33%synergy
Battlemage's Bracers
33%inclusion2 decks6 decks
31%synergy
Swiftfoot Boots
33%inclusion2 decks6 decks
-8%synergy
Expert-Level Safe
33%inclusion2 decks6 decks
33%synergy
Unwinding Clock
17%inclusion1 decks6 decks
15%synergy
Urza's Bauble
17%inclusion1 decks6 decks
16%synergy
Pearl Medallion
17%inclusion1 decks6 decks
11%synergy
Hammer of Purphoros
17%inclusion1 decks6 decks
16%synergy
Wayfarer's Bauble
17%inclusion1 decks6 decks
7%synergy
Millstone
17%inclusion1 decks6 decks
17%synergy
Halo Fountain
17%inclusion1 decks6 decks
15%synergy
Lucky Clover
17%inclusion1 decks6 decks
17%synergy
+2 Mace
17%inclusion1 decks6 decks
16%synergy
Mishra's Bauble
17%inclusion1 decks6 decks
15%synergy
Skullclamp
17%inclusion1 decks6 decks
2%synergy
Sculpting Steel
17%inclusion1 decks6 decks
13%synergy
Stone of Erech
17%inclusion1 decks6 decks
16%synergy
Forsaken Monument
17%inclusion1 decks6 decks
16%synergy
Heartstone
17%inclusion1 decks6 decks
16%synergy
Norn's Annex
17%inclusion1 decks6 decks
16%synergy
Hylda's Crown of Winter
17%inclusion1 decks6 decks
16%synergy
Pumpkin Bombs
17%inclusion1 decks6 decks
16%synergy
Rings of Brighthearth
17%inclusion1 decks6 decks
15%synergy
Mindcrank
17%inclusion1 decks6 decks
17%synergy
Blazing Torch
17%inclusion1 decks6 decks
17%synergy
Strionic Resonator
17%inclusion1 decks6 decks
13%synergy
Keening Stone
17%inclusion1 decks6 decks
17%synergy
Haystack
17%inclusion1 decks6 decks
16%synergy
Decimator Web
17%inclusion1 decks6 decks
17%synergy
Wolfhunter's Quiver
17%inclusion1 decks6 decks
17%synergy
Basilisk Collar
17%inclusion1 decks6 decks
3%synergy
The Fire Crystal
17%inclusion1 decks6 decks
12%synergy
The Dominion Bracelet
17%inclusion1 decks6 decks
16%synergy
Enchantments
Dreadful Apathy
33%inclusion2 decks6 decks
33%synergy
Ghostly Prison
33%inclusion2 decks6 decks
24%synergy
Team Avatar
33%inclusion1 decks3 decks
33%synergy
Rowan's Talent
17%inclusion1 decks6 decks
16%synergy
Ritual of Steel
17%inclusion1 decks6 decks
17%synergy
High Noon
17%inclusion1 decks6 decks
14%synergy
Dictate of the Twin Gods
17%inclusion1 decks6 decks
15%synergy
Fiery Emancipation
17%inclusion1 decks6 decks
12%synergy
Soul Snare
17%inclusion1 decks6 decks
16%synergy
We Ride at Dawn
17%inclusion1 decks6 decks
16%synergy
Stolen Strategy
17%inclusion1 decks6 decks
16%synergy
Quest for Pure Flame
17%inclusion1 decks6 decks
16%synergy
Gratuitous Violence
17%inclusion1 decks6 decks
14%synergy
Lassoed by the Law
17%inclusion1 decks6 decks
17%synergy
Burning Anger
17%inclusion1 decks6 decks
16%synergy
Chained to the Rocks
17%inclusion1 decks6 decks
16%synergy
Dazzling Theater // Prop Room
17%inclusion1 decks6 decks
14%synergy
Mechanized Warfare
17%inclusion1 decks6 decks
16%synergy
Footfall Crater
17%inclusion1 decks6 decks
16%synergy
Brimstone Roundup
17%inclusion1 decks6 decks
16%synergy
Captive Flame
17%inclusion1 decks6 decks
17%synergy
Planeswalkers
Teyo, Geometric Tactician
33%inclusion2 decks6 decks
33%synergy
Chandra, Bold Pyromancer
33%inclusion2 decks6 decks
33%synergy
The Eternal Wanderer
33%inclusion2 decks6 decks
32%synergy
Chandra, Dressed to Kill
33%inclusion2 decks6 decks
33%synergy
Archangel Elspeth
17%inclusion1 decks6 decks
16%synergy
The Wandering Emperor
17%inclusion1 decks6 decks
16%synergy
Jaya, Venerated Firemage
17%inclusion1 decks6 decks
17%synergy
Chandra, Torch of Defiance
17%inclusion1 decks6 decks
15%synergy
Ajani, Inspiring Leader
17%inclusion1 decks6 decks
17%synergy
Elspeth Resplendent
17%inclusion1 decks6 decks
16%synergy
Chandra, Legacy of Fire
17%inclusion1 decks6 decks
16%synergy
Ajani Steadfast
17%inclusion1 decks6 decks
16%synergy
Jeska, Thrice Reborn
17%inclusion1 decks6 decks
15%synergy
Ajani, Adversary of Tyrants
17%inclusion1 decks6 decks
16%synergy
Rowan, Fearless Sparkmage
17%inclusion1 decks6 decks
17%synergy
Daretti, Scrap Savant
17%inclusion1 decks6 decks
13%synergy
Elspeth, Knight-Errant
17%inclusion1 decks6 decks
16%synergy
Elspeth, Storm Slayer
17%inclusion1 decks6 decks
10%synergy
Ajani Vengeant
17%inclusion1 decks6 decks
16%synergy
Utility Lands
Slayers' Stronghold
33%inclusion2 decks6 decks
13%synergy
Maze of Ith
33%inclusion2 decks6 decks
30%synergy
Eiganjo, Seat of the Empire
33%inclusion2 decks6 decks
21%synergy
Labyrinth of Skophos
33%inclusion2 decks6 decks
32%synergy
Sunhome, Fortress of the Legion
33%inclusion2 decks6 decks
17%synergy
Temple of the False God
33%inclusion2 decks6 decks
25%synergy
Ominous Cemetery
33%inclusion2 decks6 decks
33%synergy
Rogue's Passage
33%inclusion2 decks6 decks
3%synergy
Fire Nation Palace
33%inclusion1 decks3 decks
31%synergy
Ancient Den
17%inclusion1 decks6 decks
4%synergy
Interplanar Beacon
17%inclusion1 decks6 decks
16%synergy
Kor Haven
17%inclusion1 decks6 decks
15%synergy
Flamekin Village
17%inclusion1 decks6 decks
16%synergy
Buried Ruin
17%inclusion1 decks6 decks
3%synergy
Treasure Vault
17%inclusion1 decks6 decks
12%synergy
Fomori Vault
17%inclusion1 decks6 decks
15%synergy
War Room
17%inclusion1 decks6 decks
8%synergy
Darksteel Citadel
17%inclusion1 decks6 decks
8%synergy
Inventors' Fair
17%inclusion1 decks6 decks
8%synergy
Reliquary Tower
17%inclusion1 decks6 decks
-2%synergy
Monumental Henge
17%inclusion1 decks6 decks
12%synergy
Homeward Path
17%inclusion1 decks6 decks
15%synergy
Rustic Clachan
17%inclusion1 decks6 decks
17%synergy
Nesting Grounds
17%inclusion1 decks6 decks
16%synergy
Sandstorm Verge
17%inclusion1 decks6 decks
16%synergy
Access Tunnel
17%inclusion1 decks6 decks
12%synergy
Barbarian Ring
17%inclusion1 decks6 decks
16%synergy
Great Furnace
17%inclusion1 decks6 decks
4%synergy
Amonkhet Raceway
17%inclusion1 decks6 decks
16%synergy
Mana Artifacts
Talisman of Conviction
50%inclusion3 decks6 decks
-2%synergy
Commander's Sphere
33%inclusion2 decks6 decks
20%synergy
Arcane Signet
33%inclusion2 decks6 decks
-46%synergy
Sol Ring
33%inclusion2 decks6 decks
-52%synergy
Boros Locket
33%inclusion2 decks6 decks
31%synergy
Bender's Waterskin
20%inclusion1 decks5 decks
13%synergy
Lantern of Revealing
17%inclusion1 decks6 decks
17%synergy
Meteorite
17%inclusion1 decks6 decks
17%synergy
Dreamstone Hedron
17%inclusion1 decks6 decks
16%synergy
Aetheric Amplifier
17%inclusion1 decks6 decks
16%synergy
Hedron Archive
17%inclusion1 decks6 decks
14%synergy
Boros Signet
17%inclusion1 decks6 decks
-33%synergy
The Aetherspark
17%inclusion1 decks6 decks
14%synergy
Thran Dynamo
17%inclusion1 decks6 decks
12%synergy
Liquimetal Torque
17%inclusion1 decks6 decks
12%synergy
Honor-Worn Shaku
17%inclusion1 decks6 decks
16%synergy
Victory Chimes
17%inclusion1 decks6 decks
15%synergy
Mind Stone
17%inclusion1 decks6 decks
-8%synergy
Sonic Screwdriver
17%inclusion1 decks6 decks
16%synergy
Starting Column
17%inclusion1 decks6 decks
16%synergy
Glittering Stockpile
17%inclusion1 decks6 decks
15%synergy
Lands
Mountain
100%inclusion6 decks6 decks
2%synergy
Plains
100%inclusion6 decks6 decks
2%synergy
Turbulent Steppe
100%inclusion1 decks1 decks
82%synergy
Command Tower
67%inclusion4 decks6 decks
-19%synergy
Battlefield Forge
67%inclusion4 decks6 decks
9%synergy
Rugged Prairie
67%inclusion4 decks6 decks
22%synergy
Clifftop Retreat
67%inclusion4 decks6 decks
0%synergy
Furycalm Snarl
50%inclusion3 decks6 decks
6%synergy
Temple of Triumph
50%inclusion3 decks6 decks
13%synergy
Sunscorched Divide
50%inclusion3 decks6 decks
28%synergy
Boros Garrison
50%inclusion3 decks6 decks
14%synergy
Escape Tunnel
33%inclusion2 decks6 decks
31%synergy
Myriad Landscape
33%inclusion2 decks6 decks
15%synergy
Exotic Orchard
33%inclusion2 decks6 decks
3%synergy
Sacred Foundry
33%inclusion2 decks6 decks
-14%synergy
Rustvale Bridge
33%inclusion2 decks6 decks
21%synergy
Needleverge Pathway
33%inclusion2 decks6 decks
8%synergy
Witch Enchanter
17%inclusion1 decks6 decks
3%synergy
Kabira Takedown
17%inclusion1 decks6 decks
14%synergy
Fabled Passage
17%inclusion1 decks6 decks
5%synergy
Lazotep Quarry
17%inclusion1 decks6 decks
16%synergy
Terramorphic Expanse
17%inclusion1 decks6 decks
3%synergy
Sundown Pass
17%inclusion1 decks6 decks
-22%synergy
Boros Guildgate
17%inclusion1 decks6 decks
9%synergy
Thriving Bluff
17%inclusion1 decks6 decks
14%synergy
Demolition Field
17%inclusion1 decks6 decks
14%synergy
Elegant Parlor
17%inclusion1 decks6 decks
-3%synergy
Sunbillow Verge
17%inclusion1 decks6 decks
-8%synergy
Evolving Wilds
17%inclusion1 decks6 decks
-2%synergy
Legion Leadership
17%inclusion1 decks6 decks
-1%synergy
Wind-Scarred Crag
17%inclusion1 decks6 decks
-0%synergy
Arid Mesa
17%inclusion1 decks6 decks
-12%synergy
Spectator Seating
17%inclusion1 decks6 decks
-22%synergy
Abraded Bluffs
17%inclusion1 decks6 decks
11%synergy
Abstergo Entertainment
17%inclusion1 decks6 decks
15%synergy
Thriving Heath
17%inclusion1 decks6 decks
14%synergy
Sunbaked Canyon
17%inclusion1 decks6 decks
-0%synergy
Glittering Massif
17%inclusion1 decks6 decks
8%synergy
Radiant Summit
17%inclusion1 decks6 decks
-7%synergy
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