Hero card

Ertha Jo, Frontier Mentor

Legendary Creature – Kor Advisor

PayoffThe more of what it needs is on the battlefield, the stronger it gets: the deck has to feed it a lot

Needs: Valiant

Gives: Tokens, ETB, Legendary

Not in winning lists yet: read from the card text and the graph

Build a deck with Ertha Jo, Frontier Mentor as the hero

Makes it work

Whiskervale Forerunner · Nettle Guard · Veteran Guardmouse · Whiskerquill Scribe · Mouse Trapper

Benefits from it

Pollen-Shield Hare · Starry-Eyed Skyrider · Okoye, Dora Milaje Leader · Pestbrood Sloth · Tangle Tumbler · Summon: Choco/Mog · Jiang Yanggu, Never Alone · Lumen-Class Frigate

Use instead if you don't have it

Sami, Ship's Engineer · Krenko, Mob Boss · Bruse Tarl, Roving Rancher · Sourbread Auntie · Kyoshi Warriors · Sun Warriors

Cards in the meta that answer it

Countersculpt (Azorius Control) · Get Lost (Azorius Control) · Jeskai Revelation (4-Color Control) · Inevitable Defeat (4-Color Control)