Defense Grid
2Artifact
Urza's Legacy #125 · 1999
€8.14
World Championship Decks 2000 #nl125sb · 2000
€8.29
Eighth Edition #296 · 2003
€4.00
Eighth Edition #296★ · 2003
Ninth Edition #293 · 2005
€4.10
Ninth Edition #293★ · 2005
Kaladesh Inventions #34 · 2016
€76.57
The Brothers' War Retro Artifacts #13 · 2022
€4.11
The Brothers' War Retro Artifacts #76 · 2022
€4.75
The Brothers' War Retro Artifacts #76z · 2022
€121.36
Text
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*
#1,877 EDHREC
🖌 Mark Tedin
Market prices
updated on 06/20/2026
from €121.36
| Source | Normal | Foil |
|---|---|---|
| Cardmarket | — | €121.36 |
| TCGplayer | — | $500.00 |
Trend · last 90 days · EUR · FOIL
€121.36
min €121.36
max €121.36
Rulings (2)
The additional cost can be reduced by effects that reduce costs, such as Sapphire Medallion.
10/04/2004In Two-Headed Giant, spells don't cost extra on your own turn.
05/01/2006Legality by format
| Brawl | Legal |
| Commander | Legal |
| Duel Commander | Legal |
| Legacy | Legal |
| Modern | Legal |
| Oathbreaker | Legal |
| Old School | Not legal |
| Pauper | Not legal |
| Pioneer | Not legal |
| Premodern | Legal |
| Standard | Not legal |
| Vintage | Legal |
| Block Constructed | Not legal |
| Extended | Not legal |
| Frontier | Not legal |
| Tiny Leaders | Not legal |