Bright Idea

Bright Idea enters the battlefield with eight Idea counters on it.
Whenever you draw a nonland card, reveal it and remove a number of Idea counters from Bright
Idea equal to its mana cost. If you can't, Bright
Idea deals 5 damage to you. Otherwise, target
opponent chooses: either you may cast that card without paying its mana cost, or Bright Idea deals damage equal to its mana cost to any target.