Hero card

Bygone Colossus

Artifact Creature - Robot Giant

FinisherA big threat that ends the game: the deck has to survive until it can cast it

Needs: Big Mana

Gives: Artifacts, Warp / Void

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

Build a deck with Bygone Colossus as the hero

Makes it work

Mm'menon, the Right Hand · Arc Reactor · Fabrication Foundry

Benefits from it

Donatello, Mutant Mechanic · Ironheart, Clever Champion · Valkyrie Aerial Unit · Memory Guardian · Gearseeker Serpent · Forensic Gadgeteer · Craterclaw Colossus · Ooze Patrol

Use instead if you don't have it

Diamond Weapon · Mechanozoa · Gate Colossus · Starwinder · Iron Giant · Fungal Colossus

Cards in the meta that answer it

Countersculpt (Azorius Control) · Get Lost (Azorius Control) · Inevitable Defeat (4-Color Control) · Bitter Triumph (Dimir Aggro)