Defense Grid [Kaladesh Inventions] P-20 You may cast it without

You may cast it without paying its mana cost

traipsing about some dusty old ruin in search of treasure

Buyback {3} (You may pay an additional {3} as you cast this spell

important generals were often guarded by small groups of expert soldiers known as "elite companions

The booster has the possibility of containing borderless planeswalkers or showcase cards

Defense Grid [Kaladesh Inventions] P-20 You may cast it withoutSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {2} Each spell costs {3} more to cast except during its controller's turn. "Woven together, strands of aether can form a mesh of surprising stability, though such a network tends to pull power from nearby devices." Consulate engineer's log