Hero card

The Arkenstone

Legendary Artifact

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

Needs: Tokens

Gives: Artifacts, Adventure, Card Draw

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

Build a deck with The Arkenstone as the hero

Makes it work

Haunt the Network · Pia, Determined Rebuilder · Simulacrum Synthesizer · Krenko, Baron of Tin Street · Quintorius Kand · Appa, Steadfast Guardian · Aatchik, Emerald Radian · Thrumming Hivepool

Benefits from it

Krang, Master Mind

Use instead if you don't have it

Gathering Stone · Racers' Scoreboard · Angler's Shield · Biorganic Carapace · The Endstone · The Ten Rings

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)