Defense Grid (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Demigod counter that spell if it

counter that spell if it has the same mana value as the revealed card

If that unit is an ally

You may activate Animal and Beast ally cards from the top of your deck

Set: Unknown Event Type: Instant Rarity: Common Choose one —

untap each Myr you control

Defense Grid (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Demigod counter that spell if itSet: 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*