Hero card

Costume Closet

Artifact

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

Needs: Counter +1/+1, Aura, Valiant

Gives: Counter +1/+1, Artifacts

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

Build a deck with Costume Closet as the hero

Makes it work

Solitary Sanctuary · Builder's Talent · Selfless Police Captain · Crime-Scene Instructor · Graduation Day · Turtle Van · Bat Colony · Explorer's Cache

Benefits from it

Dockworker Drone · Starport Security

Use instead if you don't have it

Collector's Cage · Agatha's Soul Cauldron · Explorer's Cache · Astrologian's Planisphere · Dockworker Drone · Lost Jitte

Cards in the meta that answer it

Countersculpt (Azorius Control) · Inevitable Defeat (4-Color Control) · No More Lies (Azorius Control) · We Say Thee Nay! (Dimir Aggro)