Hero card

Diligent Zookeeper

Creature - Human Citizen Ally

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

Needs: Changeling

Gives: Ally

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

Build a deck with Diligent Zookeeper as the hero

Makes it work

Chitinous Graspling · Mutable Explorer · Chomping Changeling · Gangly Stompling · Crib Swap · Omni-Changeling

Benefits from it

White Lotus Reinforcements · Great Divide Guide · Katara, the Fearless · Earth King's Lieutenant · Venom Connoisseur · Earthen Ally · Haru, Hidden Talent · Avatar Enthusiasts

Use instead if you don't have it

Vizier of the Menagerie · Ordinary Bear · Gigantoad · Magnigoth Sentry · Hungry Graffalon · Hexhaven Invigorator

Cards in the meta that answer it

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