flavorText: "I should have died all those years ago, and a dozen times since. I've kept myself alive with my inventions. And I must make good use of this borrowed time."
name: Arc Reactor
printings: MSH
text: Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
  This artifact enters tapped.
  {T}: Add {C}{C}{C}.
type: Artifact