![Defense Grid (Retro Schematic) [The Brothers' War Retro Artifacts]](https://cdn.shopify.com/s/files/1/0451/3388/9694/files/a49a0261-6c3c-5709-81c6-1de69a18d859.png?v=1719469709)
Defense Grid (Retro Schematic) [The Brothers' War Retro Artifacts]
| Set: | The Brothers' War Retro Artifacts |
| Type: | Artifact |
| Rarity: | Rare |
| Cost: | 2 |
Each spell costs {3} more to cast except during its controller's turn.
"Properly installed, each powerstone emits a targeted electromagnetic field that halts momentum as sure as stone."
—*Tome of Obstructions*