Hero card

Matzalantli, the Great Door

Legendary Artifact

SpellUsed once: what it does depends on when you cast it

Needs: Graveyard

Gives: Graveyard, Artifacts, Mayhem

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

Build a deck with Matzalantli, the Great Door as the hero

Makes it work

Kiora, the Rising Tide · The Everflowing Well · Monument to Endurance · Eye of Jace · Starving Revenant · Cerebral Download · Fear of Missing Out · Golbez, Crystal Collector

Benefits from it

Fabrication Foundry · Daretti, Rocketeer Engineer · Brass's Tunnel-Grinder

Use instead if you don't have it

Hylda's Crown of Winter · Buster Sword · Ninja's Blades · Racers' Scoreboard · Thief's Knife · Gathering Stone

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)