Mindbreak Trap | Magic: The Gathering
Formats Mindbreak Trap is Legal in
Official Oracle Text for Mindbreak Trap
Exile any number of target spells.
—Noyan Dar, Tazeem lullmage
Official Rulings for Mindbreak Trap
10/1/2009 : Casting a Trap by paying its alternative cost doesn't change its mana cost or converted mana cost. The only difference is the cost you actually pay.
10/1/2009 : Effects that increase or reduce the cost to cast a Trap will apply to whichever cost you chose to pay.
10/1/2009 : Mindbreak Trap's alternative cost condition checks whether an opponent cast three or more spells this turn, not whether those spells have resolved.
10/1/2009 : If 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, such as Terra Stomper.