Defense Grid
10 printings
3 / 10
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*
Legal in
Modern, Legacy, Vintage, Commander, Oathbreaker, Brawl, Historic, Timeless
Rulings (2)
The additional cost can be reduced by effects that reduce costs, such as Sapphire Medallion.
2004-10-04
In Two-Headed Giant, spells don't cost extra on your own turn.
2006-05-01