Defense Grid
Market price
- Near Mint
- $13.53
- Lightly Played
- $10.43
- Moderately Played
- $9.92
- Damaged
- $6.57
- Near Mint
- $13.53
- Lightly Played
- $10.43
- Moderately Played
- $9.92
- Damaged
- $6.57
Buy
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Each spell costs 
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*”
Illustrated by Mark Tedin
Rulings (2)
Oct 4, 2004
The additional cost can be reduced by effects that reduce costs, such as Sapphire Medallion.
May 1, 2006
In Two-Headed Giant, spells don't cost extra on your own turn.
