flavorText: Call it the thinking mage's version of brute force.
name: Spell Blast
originalText: Counter target spell with converted mana cost equal to X.
printings: 2ED, 30A, 3ED, 4BB, 4ED, 5ED, 6ED, CED, CEI, FBB, LEA, LEB, M14, PTC, SUM, TMP, TPR
text: Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)
type: Instant