flavorText: "We train for the improbable, like lightning striking the same place twice, or striking everywhere at once."
  —Nundari, Sea Gate militia captain
name: Chain Reaction
originalText: Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X.
  Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains {X}, copy that spell or ability. You may choose new targets for the copy.
printings: AFC, C15, C18, C21, CLB, CMD, DRC, ECC, EOC, NCC, NEC, ONC, SCD, SLD, SOC, WWK
text: Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.
type: Sorcery