Hero card

Appa, Loyal Sky Bison

Legendary Creature - Bison Ally

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

Needs: Bending, Valiant, Big Mana

Gives: Flyers, Bending, Ally

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

Build a deck with Appa, Loyal Sky Bison as the hero

Makes it work

Water Tribe Rallier · Toph, the First Metalbender · Aang, the Last Airbender · Airbender's Reversal · North Pole Patrol · Avatar's Wrath · Katara, Bending Prodigy · Flexible Waterbender

Use instead if you don't have it

Shepherding Spirits · Defenestrated Phantom · Monastery Messenger · Starling, Aerial Ally · Eztli of the Thousand Moons · Rishei, Getaway Accomplice

Cards in the meta that answer it

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