Cheapest priced copy (Marvel Universe): $9.99 at Card Kingdom, near mint, their price list as of .
Mindbreak Trap 
Instant — Trap · Mythic · Zendikar · #57
If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost.
Exile any number of target spells.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $9.99 to $549.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Universe | 11 | Mythic | $9.99 | $22.99 |
| Mystery Booster 2 | 168 | Mythic | $10.99 | $179.99 |
| Breaking News | 12 | Mythic | $11.99 | $29.99 |
| Breaking News | 68 | Mythic | — | $549.99 |
| Zendikar | 57 | Mythic | $21.99 | $399.99 |
3 rulings from Wizards of the Coast
- 19 September 2025Mindbreak Trap's alternative cost condition checks whether an opponent cast three or more spells this turn, not whether those spells have resolved.
- 19 September 2025If a spell is exiled, it's removed from the stack and thus will not resolve. The spell isn't countered; it just no longer exists. This works on spells that can't be countered.
- 19 September 2025For Mindbreak Trap's alternative cost to apply, a single opponent must cast three or more spells. Three opponents each casting a single spell won't work, for example.