Hero card

Arc Reactor

Artifact

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

Needs: Artifacts

Gives: Artifacts, Landfall, Big Mana

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

Build a deck with Arc Reactor as the hero

Makes it work

Radiant Lotus · Fabrication Foundry · Fizik, Etherium Mechanic · Iron Spider, Stark Upgrade · Krang, Master Mind · Voyager Quickwelder · Guidelight Synergist · Memory Guardian

Benefits from it

Voyage Home · Edgar, King of Figaro · Fateful Discovery · Sami, Wildcat Captain · Armor Wars · G'raha Tia

Use instead if you don't have it

Gilded Lotus · Pyromancer's Goggles · The Eternity Elevator · Reality Fulcrum · Interdimensional Web Watch · White Lotus Tile

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)