Mana Cost: (CMC: 2)

Card Type: Artifact

Rules Text:
Each spell costs more to cast except during its controller's turn.

Flavor Text:
"Properly installed, each powerstone emits a targeted electromagnetic field that halts momentum as sure as stone." —*Tome of Obstructions*

Format Legality:
Standard: Illegal; Modern: Illegal; Legacy: Illegal; Vintage: Illegal; Commander: Illegal

Articles with Defense Grid

Wizards of the Coast Gatherer
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